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Cisco ONS 15540 ESPx Hardware Installation Guide
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Chapter 2 Installing the Cisco ONS 15540 ESPx
Using Y-Cable
Figure 2-40 Installing the AC Power Cord
Step 6
Verify 15540-ACPS-N-E power supply operation by checking the power supply
front panel LEDs:
•
AC OK LED is on.
•
DC OK LED is on.
Step 7
Check the external power supply status from the system console by entering the
show hardware command. For more information on commands, refer to the
Cisco ONS 15540 ESPx Configuration Guide
and the
Cisco ONS 15540 ESPx
Command Reference
.
Using Y-Cable
Using an external 2:1 combiner (the y-cable), connections between the client
equipment and the transponder interfaces are duplicated. This means each input
and output client signal is connected to two transponder interfaces, one active and
one standby. During any interval, one of the transmitters at the client interface is
turned on and is generating the required optical signal, and the second transmitter
is off.
Refer to the
Cisco ONS 15540 ESPx Planning Guide
for y-cable configuration
guidelines.
99384
(-) NEG
(+) RTN
(-) NEG
(+) RTN
