Can the TX of Transceiver-A be routed to the RX of Transceiver-A ext to the FPGA?

[Altera_Forum]

Hello, 

 This question is for both the Stratix II GX High Speed Serial Transceivers and the Stratix IV GX High Speed Serial Transceivers   Can the TX of Transceiver-A be routed to the RX of Transceiver-A external to the FPGA?    That is, is there any reason that an external loopback (off chip) cannot be done?   Are there any special considerations with going from Transceiver A back to A as opposed to going from A to B?   Thank you for your help,

[Altera_Forum]

Hi Digitalone 

 Though I don't know about this A/B issue(possibly you mean two channels) but I don't forsee any problems in connecting them externally(be it in a testbench model or actual hardware) as long as Rx receives good quality LVDS signal of correct speed from fellow Tx.  Regards kaz