Platinum™ VX
Installation and Operation Manual Clean and Quiet Switching
© 2016 Imagine Communications Corp. Proprietary and Confidential. Version 1.2 | Page 68
SFP Relay Bypass
The Platinum VX CQS frame has 2 SFP modules (SFP+ETRX+BP) that come with the frame. These 2 SFP
Relay bypass modules are provided on the SFP input side (Slots 27-28 and 21-32), to avoid program
output interruption in the event the frame loses power.
SFP Inputs on the relay bypass module are Inputs #27 and #31
SFP Outputs on the relay bypass module are Outputs #28 and #32
Figure 53: Relay Bypass on the Platinum VX CQS
If SFP relay bypass modules are detected on input side, SFP output slots 27-28 and 31-32 are disabled.
The expected behavior for the SFP relay bypass module is as follows:
Power Loss Setup: The user provides a stream for power loss, and connects that stream to the SFP
relay bypass module’s input port.
Power Loss: When frame power is lost, the program output in the SFP relay bypass module
immediately connects to its input signal. This is non clean and quiet switch and a glitch is to be
expected.
Power Restoration: After power is restored to the frame, the output will initially still be the power-
loss signal, and will be switched to the real program signal only after the CQS module boots up and
routing before power lost is recovered. This transition is also a non clean and quiet switch.
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