MACSec over dark fiber - transceiver module option?

Dear all,
Want to order two WS-C3750X-24T-S with service modules C3KX-SM-10G in order to implement MACSec between two datacenters using dark fiber (one fiber). Distance between datacenters is about 17 Km.
Can I use GLC-EX-SMD module on both location?
Thanks in advance,

Hi Marvin,
Thanks for the response,
Actually I'm little bit confused because ISP fiber engineer explain to me that since there is single fiber optic between two datacenters he suggest me to use GLC-BX40-D-I in one side and GLC-BX40-U-I in other side. This is because GLC-BX40-D-I 1550nm for TX and 1310 for RX and viceversa for GLC-BX40-U-I. In other hand GLC-EX-SMD operates only on range 1310nm and this module will be installed in both sides.
Based on cisco docs GLC-BX40-D-I and GLC-BX40-U-I not supported in 3750X.
I just want to be sure if it will work for sure in my environment?
BR
Enis

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Hi, sorry for my English, but I hope you understand me, and I understand your answers:)
We are in the process of adding new data center (DC2), which will be geographically located about 20 km from our existing data center (DC1). Between them laid dark fiber (two fibers). We need a solution for the LAN(layer 2) and SAN(native FC) extension ...
Solution is to see me use two passive EWDM-MUX8 at both ends of dark fiber with DWDM transceivers on the equipment in the DC1 & DC2.
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For FC we propose to use DWDM SFP Modules for Cisco ONS Family (p/n:ONS-SC-4G-xx.x =).
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http://www.cisco.com/en/US/prod/collateral/routers/ps5763/product_data_sheet0900aecd80395bbe.html
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MACSec over dark fiber - transceiver module option?

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