WS-X6704-10GE at line rate ?
Hi..
Any idea if the 4 port 10GE card WS-X6704-10GE runs at line rate for each port ? Can we get approx 40Gbps throughput out of this card ?
Eng Wee
Hi Eng wee,
The 4 port 10 Gigabit Ethernet interface module is CEF720 based and communicate using 40-Gbps connections to the integrated 720-Gbps switch fabric of the Supervisor Engine 720.
http://www.cisco.com/en/US/products/hw/switches/ps708/products_data_sheet09186a00801dce34.html
HTH,
-amit singh
Similar Messages
-
Line rate always changing / Hub resetting itself
Hello
For the past 6 or 7 months we have seen dramatic fluctuations in our Broadband download speed. This change always comes about as a result of our our Home Hub 4 seemingly restting itself: we have normal internet use with a blue light on, but then the Hub will flash orange for a while and come back with a blue light. There is no pattern regarding the time of day; it's completely random.
I've been informed that a resetting connection will only inform the exchange that there is a problem, thus prompting the "IP Profile to be reduced" to make things stable. Surely then this isn't supposed to be happening?
There was a time when we would always get around 2.7 - 3.3 Mbps line rate, which is the best we could expect for our area and the distance from the exchange. The download speeds associated with that were good enough for us, but we can never seem to get that now.
The Event Log will report the process described above as: 'Failed to Resolve Host' and, once the connection is re-established, the line rate will usually be lower than it was before. As an example, a line rate of approx 2.3 Mbps will drop to about 1.3 Mbps. Sometimes this process will return a slightly higher line rate!
This happens approximately once every day, but the line rate is never the decent 3 Mbps we used to get...Sometimes I get lucky by manually resetting the Hub and the line rate will be 2.5 Mbps...but it isn't long before it resets itself and, again, we have about 1.2 Mbps.
Current event log:
12:24:27, 18 Sep.
( 97.940000) DSL noise margin: 5.90 dB upstream, 6.00 dB downstream
12:24:26, 18 Sep.
( 96.910000) DSL line rate: 934 Kbps upstream, 1315 Kbps downstream
12:24:11, 18 Sep.
( 81.000000) CWMP: session closed due to error: Could not resolve host
In the last month there was a small amount of noise on the telephone line (we were looking into it but it appears to have gone), but this line rate fluctuation started long before then anyway. Phone call with the Telephone department team told me there appears to be no problem with the line. We have also had 3 different Hubs during that time, so it isn't a Hub issue. Filters in place and Master Socket is in use. Using the test socket yeilds same problems.
Further questions if anyone is able to answer them:
Besides interference from noise, is there a good reason for the Hub to go through this process and force lower speeds upon us? Is the exchange throttling us or something?
For a period last year we were getting 380 kB/s in a speed test and that was fine to use because it matches the line capabilities that we have always been quoted. I don't understand why we can't have a similar speed now. We don't even get > 300kB/s during off peak times. Is it normal for our DL speed to now be always be about 180 kB/s? We were told during our recent re-contract that there is no longer any capping.presumbly the previous stats were from the test socket as new stats are just the same
any exchnage problems http://usertools.plus.net/exchanges/mso.php
http://usertools.plus.net/exchanges/?
http://btbusiness.custhelp.com/app/service_status
http://bt.custhelp.com/app/answers/detail/a_id/15036
http://community.plus.net/exchange-information/
If you like a post, or want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side of the post.
If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’. -
just wondering what determines your line rate, ive come from having Virgin Media fibre optic, i know very little about ADSL
my connection is currently:
DSL line rate: 912 Kbps upstream, 8375 Kbps downstream
DSL noise margin: 5.90 dB upstream, 6.10 dB downstream
is it ever likely to change ?on Exchange SAINT HELENS is served by Cabinet 20
Featured ProductsDownstream Line Rate(Mbps)Upstream Line Rate(Mbps)Downstream Range(Mbps)Availability Date High Low High Low
FTTC Range A (Clean)
65.4
48.1
19
12.6
30-Sep-15
FTTC Range B (Impacted)
55.6
32.4
19
8.7
30-Sep-15
WBC ADSL 2+
Up to 6
3 to 9
Available
WBC ADSL 2+ Annex M
Up to 6
Up to 1
3 to 9
Available
ADSL Max
Up to 4.5
2.5 to 7.5
Available
WBC Fixed Rate
2
Available
Fixed Rate
2
Available
Other Offerings
Fibre Multicast
30-Sep-15
Copper Multicast
Available -
Line rate is higher than attainable rate!
I've been on Infinity for 3 or 4 months now and have had consistently a BT profile of 72.3 to 72.86Mbps, the changes occuring after modem resets or power cycles. Attainable rate (via the standard modem hack) has been 75272 to 76184kbps. Line rate has been 500 to 900 kbps below the attainable rate.
A few days ago we had a major power cut in the local area including here, lasting for several hours and afterwards, everything worked as normal. Just now I decided to check my BT profile and modem stats, just out of interest, as you do. The results are interesting - my profile has gone up to 75.73/20.00 and the modem stats are what I thought was impossible - line rate is much higher than the attainable rate! Stats are below.
Line is stable and needless to say I am delighted - I am now getting speedtest d/l results 3Mbps higher than ever before (74Mbps), but can anyone explain how line rate can be above attainable rate?
Mode VDSL2
Traffic type PTM
DSL synchronization status Up
DSL up time 272927
Line Status
Downstream Upstream
Attainable rate (kbit/s) 75948 26179
SNR margin (dB) 5.4 15.1
Line attenuation (dB) 0 0
Output power (dBmV) 13 3.8
Statistics
Downstream Upstream
Line rate (kbit/s) 78235 20000
CRC errors 0 0
FEC errors 981 178
HEC errors 2182 0You must have a good line and probably have the cabinet in your front room!
Who knows! I wouldn't say it would be impossible to hit pass your attainable rate, i would only take these as estimates as much as everything else.
It was like when i was on copper, thinking my line could only sync at 4MB, but constantly synced at around 6.5-7MB which was good for me! lol!
If you want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side If the the reply answers your question then please mark as ’Mark as Accepted Solution -
Decent line rate, throughput not consistent!
Hi folks,
On Wednesday I upgraded to the Broadband unlimited package, and with that got a Homehub 4.
Router setup went fine and broadband connected.
It has synced at a good rate but when conducting speed tests, the results range from a download of 15mb right down to the lowest Ive seen of 0.2mb. The results can be quite different from two tests done straight after eachother. There is no consistency and seems to be jumping all over the place.
The upload results remain around the 1mb mark.
My previous hub was a homehub 1 and although the last download sync I remember was 3.2mb, it was at least steady and I had no problems with it, besides the occasional reboot required.
Sync stats below:
Connection time:
0 days, 01:58:08
Downstream:
18.71 Mbps
Upstream:
1.137 Mbps
Other stats:
16:15:13, 06 Dec.
( 98.830000) DSL noise margin: 5.90 dB upstream, 3.00 dB downstream
16:15:11, 06 Dec.
( 97.710000) DSL line rate: 1163 Kbps upstream, 19160 Kbps downstream
results of recent diagnostic with BTWholesale:
1. Best Effort Test: -provides background information.
Download speed achieved during the test was - 3.01 Mbps
For your connection, the acceptable range of speeds is 4 Mbps-21 Mbps.
IP Profile for your line is - 16.9 Mbps
Upload speed achieved during the test was - 0.99Mbps
Additional Information:
Upstream Rate IP profile on your line is - 0.83 Mbps
Looking around some of the other posts on the forum with similar issues, I suspect this could be an issue for a mod to sort out?
Thanks for readingSpeed check @ 21:15
Download speed achieved during the test was - 14.83 Mbps
For your connection, the acceptable range of speeds is 4 Mbps-21 Mbps.
IP Profile for your line is - 15.21 Mbps
Speed tests done today seem to have stabilised around the 14-15mb mark.
I noticed that my router reset this morning, with the noise increasing to 6db, not sure if this would help stabilise the throughput?
04:13:59, 07 Dec.
(43225.730000) DSL noise margin: 5.90 dB upstream, 6.00 dB downstream
04:13:58, 07 Dec.
(43224.700000) DSL line rate: 1147 Kbps upstream, 17240 Kbps downstream
I'll keep an eye on it over the next couple of days. -
Data on HH2 Achieving Stable Line Rate & Switching...
In the thread "Re: Is HomeHub designed to be on all the time? No off switch?" the question was raised about properly switching off the router at the mains. I have collected data over the past few weeks which may give some guidance on this action, plus the changes as my line stabilises.
I pointed out in this thread that when entering the HH through the browser the Home Page opens by default. On this page there is a Connect/Disconnect button as the first listed item, whether this is also available on the HH type A or HH3 I don't know, mine id Type B. There are a few mentions of this button from a Forum search, but no clear reason for its function (not in the User Manual). I have found it in, for example, the threads, "Home Hub 2.0 wireless internet connection issues" in June 2010 & a clear mention by geoff93 in thread "Re: Sudden Drop In Speed (Again)" 1 Mar 2011; "Re: Broadband speed dropped from 10Mb to 250K overnight" on 24 Feb 2011.
In many threads the point is made that the HH should be left on continuously to keep the line stable as the DSLAM in the exchange checks the line at frequent intervals (about every 7-8 sec it seems on my line). I assume that using this Disconnect Button provides a logical warning to the exchange circuits that the line has deliberately been removed - it would be nice if the Forum Moderators could confirm if this function is in the design specification of the software and how the exchange system is expected to respond.
Following the four visits by OpenReach in Feb/Mar to sort my line arranged by the Forum Moderators (they were always most helpful when contacted) I left the HH on continuously from 21 Mar until 13 May with the following results which may be of interest
DATE D:HR:MIN DOWN UP MARGIN
21 Mar 0, 0, 5 9,728 976 12.9
0, 3, 54 16,841 1,078 5.3
23 Mar 0, 20, 59 16,841 1,078 6.1
24 Mar 0, 13,41 16,272 1,110 6.9
25 Mar 1, 1, 2 16,696 1,106 5.7
26 Mar 0, 16, 46 16,529 1,078 6.6
27 Mar 1, 19, 4 16,529 1,078 6.7
2 Apr 3, 13, 51 15,228 1,078 8.1
3 Apr 0, 4, 21 12,702 1,078 12.3
4 Apr 0, 5, 2 13,105 1,078 11.9
5 Apr 0, 3, 22 14,336 1,078 9.0
6 Apr 1, 7, 55 14,336 1,078 8.7
13 May 0, 0, 4 14,336 1,078 7.6
within this whole period I still had random disconnects/resets.
From 13 May I started to now run the HH2 with the power switched off at night (usually), until I decide to switch on the PC the next day, or later.
13 May 0, 7, 4 14,336 1,078 8.9
14 May 0, 0, 2 14,336 1,078 8.3
16 May 0, 0, 1 14,336 1,078 7.5
17 May 0, 0, 12 14,336 1,078 7.9
18 May 0, 0, 1 14,336 1,110 7.9
19 May 0, 9, 55 14,336 1,078 9.0
20 May 0, 0, 59 14,336 1,110 7.6
22 May 0, 14, 53 14,336 1,078 8.7
23 May 0, 0, 31 14,336 1,078 7.8
24 May 0, 0, 1 14,336 1,078 8.0
25 May 0, 2, 45 14,336 1,110 8.2
26 May 0, 1, 20 14,336 1,078 8.8
28 May 0, 4, 7 14,336 1,078 9.1
29 May 0, 0, 8 14,336 1,106 8.1
30 May 0, 7, 51 14,336 1,078 8.9
It seems that the line took 16 days (to 5 April) to stabilise at 14,336/1,078. The following 15 days after 13 May logically disconnecting/connecting seems not to disturb the line rate. However, I still get random disconnects/resets and also occasional disconnects when accessing the HH2.
The HH2 is running software 4.7.5.1.83.3.18, when I received it back in October it had ver ...83.3.5. The line distance to the Crowthorne exchange is ca 1000m.
Rodney FryIn the thread "Re: Is HomeHub designed to be on all the time? No off switch?" the question was raised about properly switching off the router at the mains. I have collected data over the past few weeks which may give some guidance on this action, plus the changes as my line stabilises.
I pointed out in this thread that when entering the HH through the browser the Home Page opens by default. On this page there is a Connect/Disconnect button as the first listed item, whether this is also available on the HH type A or HH3 I don't know, mine id Type B. There are a few mentions of this button from a Forum search, but no clear reason for its function (not in the User Manual). I have found it in, for example, the threads, "Home Hub 2.0 wireless internet connection issues" in June 2010 & a clear mention by geoff93 in thread "Re: Sudden Drop In Speed (Again)" 1 Mar 2011; "Re: Broadband speed dropped from 10Mb to 250K overnight" on 24 Feb 2011.
In many threads the point is made that the HH should be left on continuously to keep the line stable as the DSLAM in the exchange checks the line at frequent intervals (about every 7-8 sec it seems on my line). I assume that using this Disconnect Button provides a logical warning to the exchange circuits that the line has deliberately been removed - it would be nice if the Forum Moderators could confirm if this function is in the design specification of the software and how the exchange system is expected to respond.
Following the four visits by OpenReach in Feb/Mar to sort my line arranged by the Forum Moderators (they were always most helpful when contacted) I left the HH on continuously from 21 Mar until 13 May with the following results which may be of interest
DATE D:HR:MIN DOWN UP MARGIN
21 Mar 0, 0, 5 9,728 976 12.9
0, 3, 54 16,841 1,078 5.3
23 Mar 0, 20, 59 16,841 1,078 6.1
24 Mar 0, 13,41 16,272 1,110 6.9
25 Mar 1, 1, 2 16,696 1,106 5.7
26 Mar 0, 16, 46 16,529 1,078 6.6
27 Mar 1, 19, 4 16,529 1,078 6.7
2 Apr 3, 13, 51 15,228 1,078 8.1
3 Apr 0, 4, 21 12,702 1,078 12.3
4 Apr 0, 5, 2 13,105 1,078 11.9
5 Apr 0, 3, 22 14,336 1,078 9.0
6 Apr 1, 7, 55 14,336 1,078 8.7
13 May 0, 0, 4 14,336 1,078 7.6
within this whole period I still had random disconnects/resets.
From 13 May I started to now run the HH2 with the power switched off at night (usually), until I decide to switch on the PC the next day, or later.
13 May 0, 7, 4 14,336 1,078 8.9
14 May 0, 0, 2 14,336 1,078 8.3
16 May 0, 0, 1 14,336 1,078 7.5
17 May 0, 0, 12 14,336 1,078 7.9
18 May 0, 0, 1 14,336 1,110 7.9
19 May 0, 9, 55 14,336 1,078 9.0
20 May 0, 0, 59 14,336 1,110 7.6
22 May 0, 14, 53 14,336 1,078 8.7
23 May 0, 0, 31 14,336 1,078 7.8
24 May 0, 0, 1 14,336 1,078 8.0
25 May 0, 2, 45 14,336 1,110 8.2
26 May 0, 1, 20 14,336 1,078 8.8
28 May 0, 4, 7 14,336 1,078 9.1
29 May 0, 0, 8 14,336 1,106 8.1
30 May 0, 7, 51 14,336 1,078 8.9
It seems that the line took 16 days (to 5 April) to stabilise at 14,336/1,078. The following 15 days after 13 May logically disconnecting/connecting seems not to disturb the line rate. However, I still get random disconnects/resets and also occasional disconnects when accessing the HH2.
The HH2 is running software 4.7.5.1.83.3.18, when I received it back in October it had ver ...83.3.5. The line distance to the Crowthorne exchange is ca 1000m.
Rodney Fry -
I have had a problem recently with an 878 using SDSL.
I recently lost connection to the device after a thunderstorm and assumed either a tail problem or a blown modem.
After several tests by BT the line passed as clear and after changing the 878, there was still no connection.
Reviewing my RANCID configs for the past 6 months shows that the config on the Controller DSL 0 changed over time. I originally set the line rate to auto, which was lated changed to hard code 2304k. This I have no problem with....unfortunately thats not the end of it.
The latest config (which was applied to the new router) shows the line rate at 1152k. When I double checked that yesterday, it had changed to 576k. Now, there has been no outside intervention, only I have access. The logs show nothing to prove that anything changed.
I have fixed the issue by resetting the line rate to auto, but what I need to know or understand is how has this changed without my intervention. This is not a negotiated rate as far as I was aware.
I would appreciate any help. ThanksThe only thing that I can think of is a software glitch. I cannot compare the startup config but considering the original router was rebooted several times and the line rate came back as 1152, I must assume that the startup had been altered as well.
I obviously need to find a cause for this for 2 reasons.
1/ I need to write a report on this
2/ To stop me from going mad
Cheers -
Very slow download speed though modem line rate no...
Hi
I recently noticed (today, 31st December) that our download speed had dropped very low, to approx 0.5Mbps. The upload speed is normal, approx 1Mbps. The modem line rate is however normal (8Mbps dowm, 1Mbps up). I have checked the download speed using http://speedtest.btwholesale.com/. I am at postcode SK237FN and have had consistently reliable download speeds for several years, 5-7Mbps.
Please help!
I already tried rebooting my router but this has not improved matters.
Thanks...
Test Result
Best Effort Test: -provides background information.
Download Speed
0.59 Mbps
0 Mbps
7.15 Mbps
Max Achievable Speed
Download speedachieved during the test was - 0.59 Mbps
For your connection, the acceptable range of speeds is 2 Mbps-7.15 Mbps.
IP Profile for your line is - 7.2 Mbps
Solved!
Go to Solution.Hi
Thanks for your quick reply.
I don't use a BT "home hub"; I use a Billion router, ADSL status below.
The speedtest was performed using a wired connection.
BR
Mike
Mode
ADSL_2plus
Traffic Type
ATM
Status
Up
Link Power State
L0
Downstream
Upstream
Line Coding (Trellis)
On
On
SNR Margin (dB)
4.2
6.3
Attenuation (dB)
33.0
15.9
Output Power (dBm)
0.0
12.8
Attainable Rate (Kbps)
9184
1056
Rate (Kbps)
7438
1052
MSGc (# of bytes in overhead channel message)
59
10
B (# of bytes in Mux Data Frame)
232
150
M (# of Mux Data Frames in FEC Data Frame)
1
1
T (Mux Data Frames over sync bytes)
1
1
R (# of check bytes in FEC Data Frame)
16
0
S (ratio of FEC over PMD Data Frame length)
0.9979
4.5584
L (# of bits in PMD Data Frame)
1996
265
D (interleaver depth)
32
1
Delay (msec)
8
1
INP (DMT symbol)
1.00
0.00
Super Frames
364092
322883
Super Frame Errors
63
0
RS Words
23665906
882081
RS Correctable Errors
1466757
0
RS Uncorrectable Errors
711
0
HEC Errors
702
0
OCD Errors
0
0
LCD Errors
0
0
Total Cells
103594167
14634218
Data Cells
24717224
1770221
Bit Errors
0
0
Total ES
14
0
Total SES
1
0
Total UAS
76
76 -
I have a Catalyst 6509 with supervisor 720-3B and IOS 12.2(17d)SXB10. I have installed a X6704 4 port 10Gb card in slot 1 and powered up the system. The X6704 is recognised but is powered off with a message stating that it is not supported. Using show module the online daig status is unknown and the detals for the card are as follows:
HW FW Sw Status
1.5 12.2(14r)S5 12.2(17d)SXB Other
I have tried using alternate IOS levels such as 12.2(18)SXD4 but get the following error messages:
%PM_SCP-SP-1-LCP_FW_ERR: System resetting module 1 to recover from error: Linecard received system exception
%OIR-SP-3-PWRCYCLE: Card in module 1, is being power-cycled Off (Module Reset due to exception or user request)
Can someone please tell me what is wrong and if its the IOS I'm using what level I need to support the card.
ThanksHi Paresh,
I don't think I have any of those cards. Using show module I have the following:
Mod Ports Card Type Model Serial No.
1 16 SFM-capable 16 port 1000mb GBIC WS-X6516A-GBIC SAL0715BHAR
2 4 CEF720 4 port 10-Gigabit Ethernet WS-X6704-10GE SAL08280B14
3 48 48 port 10/100/1000mb EtherModule WS-X6148-GE-TX SAL09465FNV
4 6 Firewall Module WS-SVC-FWM-1 SAD071903HF
5 2 Supervisor Engine 720 (Active) WS-SUP720-3B SAL09358QGZ
6 48 48 port 10/100/1000mb EtherModule WS-X6148-GE-TX SAL09475WKY
9 48 48 port 10/100/1000mb EtherModule WS-X6148-GE-TX SAL094448HW
Mod MAC addresses Hw Fw Sw Status
1 0009.11f7.ff90 to 0009.11f7.ff9f 1.0 7.2(1) 8.3(0.156)RO Ok
2 0011.5ccf.08b0 to 0011.5ccf.08b3 1.5 12.2(14r)S5 12.2(18)SXD7 PwrDown
3 0015.f998.2e38 to 0015.f998.2e67 1.1 7.2(1) 8.3(0.156)RO Ok
4 0003.feab.7538 to 0003.feab.753f 2.0 7.2(1) 2.3(3)2 Ok
5 0013.7f0a.e194 to 0013.7f0a.e197 4.4 8.1(3) 12.2(18)SXD7 Ok
6 0015.f943.e990 to 0015.f943.e9bf 1.1 7.2(1) 8.3(0.156)RO Ok
9 0015.c6c9.32a4 to 0015.c6c9.32d3 1.1 7.2(1) 8.3(0.156)RO Ok
Mod Sub-Module Model Serial Hw Status
5 Policy Feature Card 3 WS-F6K-PFC3B SAL09358QTN 2.1 Ok
5 MSFC3 Daughterboard WS-SUP720 SAL09358N63 2.3 Ok
Mod Online Diag Status
1 Pass
2 Unknown
3 Pass
4 Pass
5 Pass
6 Pass
9 Pass
does this mean I need some extra kit to use the x6704 ?
Thanks,
Paul -
It looks like my FTTC 40/10 download speed has dropped its was downloading at 28Mbps for a long time and now getting 24Mbps the attainable rate is steady at 33600 - 34800 but line rate has gone down from 29400 to 26093, the only thing I did was to turn off the HH3 overnight and line rate has stuck on 26093 it now over 2 days will my speed come back ?
Solved!
Go to Solution.Did you just leave all your equipment alone for 2 weeks for it to increase or did you do a turn on and off job after 2 weeks?.
Please click on pink star to the left and say thanks if I have helped you at all!. Thank you. Home Hub Page- http://bthomehub.home/
BT Speed test- http://www.speedtest.btwholesale.com/
Speedtest:-http://diagnostics.bt.com/login/?workflow=Speed
Net Connect test- http://netalyzr.icsi.berkeley.edu/index.html -
Difference between WS-X6704-10GE or VS-S720-10G-3C 10G port
Hi All,
We have a presales case, where the partner is asking the difference between VS-S720-10G-3C and the WS-X6704-10GE linecard . He is asking from the perspective of the performance and features comparison.
I would appreciate any information that anyone would be able to provide. Thanks for the help in advance.
Awaiting your reply,
Regards
Sinu AliasThe following paper outlines deployment scenarios for the two cards if using them for Virtual Switch Links.
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps9336/prod_white_paper0900aecd806ee2ed_ps2797_Products_White_Paper.html
Brief excerpt:
âVSL-capable interfaces are required to create a VSL port channel. The current modules that support the formation of a VSL port channel are the 10 Gigabit Ethernet uplink ports on the Supervisor Engine 720-10G VSS (VS-S720-10G-3C/XL) and the Cisco 8-Port 10 Gigabit Ethernet Switching Module (WS-X6708-10G-3C/XL). (Refer to Figure 5.)
Figure 5. VSL-capable Modules
These interfaces contain new port ASICs that allow the VSH to be encapsulated on each frame forwarded out of the port and also support the ability to de-encapsulate VSH-tagged frames.â
It is a start... -
Modules supported on WS-X6704-10GE line card for WS-C6509-E
We are planning to expand the local network and looking to add 10G line cards on our WS-6509-E. The confusion is over the types of optic modules that these cards support.
Can anyone advice if these line cards support all these three - namely XENPAK, X2 & SFP Plus?
ThanksWhat is the difference between these supervisor (VS-S720-10G-3C or VS-S720-10G-3CXL)
See the "XL" at the end of the part number? If you get the regular (no "XL"), you'll only get 256k IPv4 routes. The "XL" will allow you up to 1 million IPv4 routes.
Is these modules will work with c6509E and these supervisor (VS-S720-10G-3C or VS-S720-10G-3CXL)
Yes and no. Yes, these supervisor cards will work on the current chassis you've got. But if you plan to use VSS, then your 6704 line card is incompatible with VSS.
Another thing, don't waste your money. Firstly, the price of the Sup720 is exactly the same as the price of the newer (and more powerful) Sup2T supervisor card.
And lastly, rumours has it that the 6500 chassis is in it's "last gasp". Personally, I'm waiting for Cisco to announce the EoS/EoL.
If you want to future-proof your investment, the potential replacement of the venerable 6500E is the 6880-X/6807-X. -
I need to take an encoder in TTL format into trigger line 0 and redirect it to output control line 0 so that the board drives it in LVDS format. This will become the External Sync line for the Dalsa CL-P1-2048 line scan camera. I assume this is done in the icd file, but the documentation on this subject and the 1422 itself is extremely poor.
Brian,
I do not believe you are going to do exactly what you are looking for since there is no way to write to the control lines programatically or from the camera file. If you are looking to use this signal to trigger each line, you may want to take a look at this example:
http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/f2799dc12a94be2586256a79006985ce?OpenDocument
It uses motion and routes the encoder signal across for the line trigger. You can modify this so the input trigger is from your trigger line. I hope this information helps.
Chris D
NI Applications Engineer -
Unusually low Rx power values ? WS-X6704-10GE (10Gbase-SR)
Referencing...http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps5138/product_data_sheet09186a008007cd00_ps5455_Products_Data_Sheet.html
The Optical Transmit and Receive Specifications for this transceiver (XENPAK-10GB-SR) indicate :
Tx Power (dBm) : Max -1.2, Min -7.3
Rx Power (dBm) : Max -1.0, Min -9.9
We are seeing readings on one of these modules that are clearly well outside these ranges.
Tx Power (dBm) : -18.6
Rx Power (dBm) : -40.0
No interface errors or anomolous behaviour of any kind is indicated on this interface at this time.
My question.
Without getting into the detail of what could be the potential cause of this particlar interface showing these readings (as all of the other interfaces are reading within the specified range), could I get an opinion as to what impacts, if any, we can expect to see on this interface as a result of these observed values ?
Thank you for your inputs./* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;}
Tx power is measured from this XENPAK and must be inside the specified range. -18dBm is around 32 times less than expected. I would consider this XENPAK as broken and replace it as such strong power difference can cause errors on a receive side.
Rx power range is what is expected from the remote end. Measuring Rx power makes sense when there is something transmitting light to us and we want to confirm an incoming power does not exceed our Rx power range.
/A -
Calculating motion rate for given line scan rate
Dear friends,
I need to understand the calculation of motion rate for given line scan rate.
i have line-scan camera connected to servo motor.
i know that the line-scan camera can run at 7.2 khz line rate (7200 lines in 1 second).
Each pixel need to be 0.1mm (in the direction of motion). 10 lines of scanning is 1mm.
i need to scan image of object that its length is 400mm (0.1mm*4000lines)
First, the Conveyor stop, the object that i need to test with the linescan camera is now 5cm from the camera.
i want that the servo motor will move the conveyor for 45cm and stop.
(the conveyor accellerate, move const speed, decellerate, stop. the line scan camera connected to 10khz encoder for each revolution)
Now i'm getting lost with the calculation.....
if 1pixel = 0.1mm , then i need the conveyor belt be able to move 0.1mm for each pulse of the encoder???
i want that the servo motor will rotate chain (like the attached image),
but i dont know how i need to calculate the gear diameter, the chain pitch, etc...
and specially, how this parameters influence the line scan rate, and what is the role of the encoder here...
Thanks for any support.
Moti
Attachments:
Chain_gear.jpg 17 KBIt sounds like you are mixing two methods of using a line scan camera.
The first method is to run the camera at a fixed speed. If the speed of your belt is constant, this can work okay. To calculate the desired speed, let B=belt speed (mm/sec), L=line rate (lines/sec), R=mm/line (0.1mm/line in your case)
B = L / R This equation can be rearranged to calculate any of the quantities.
The second method is to use an encoder to trigger each line captured by the camera. In this case, the speed of the belt is not important as long as you don't go too fast for the camera. In this case, you need to know how many mm the belt will travel for each pulse. To calculate this, you would probably measure how far the belt travels during one revolution of the encoder. You should also know the number of encoder pulses per revolution. Dividing distance by pulses gives you distance per pulse. Since you want 0.1 mm/pulse, you would need to adjust either the number of pulses in the encoder or the diameter of the belt roller. If E=encoder pulses and D=belt distance, R = D / E.
Bruce
Bruce Ammons
Ammons Engineering
Maybe you are looking for
-
I want to show a tif in a JLabel I know Java work with gif and jpeg, but what 's about tif ?
-
AI CC v. x.0.0 Work PC Setup: Core i7 16gb ram Windows 8.1 GTX 750 The issue randomly arose on my co-workers pc. Has been working 100% until suddenly when she applies a drop shadow. The drop shadow has an orange blur extending out from it. However wh
-
HCM Form Dynamic UI Control change
Hi, I need a solution on the dynamic UI control change in Adobe form, I am populating the backbend values in the dropdown, but the requirement is if i get only one value in the dropdown i need to show that in textfield It means that i need to change
-
I have a tab interaction on a left hand side of page. In one of the tabs is a button interaction. When you click on the button, it opens another tab interaction on the right hand side of the page, now both set of tabs interactions appear. The tab int
-
Hello Does anybody know a shortcut or function for copying text from a word doc without copying the size, colour and type of font used. Not sure if it's possible to do or not but would save me a bit of time from having to change the text to the way I