Cisco MGX MGX 8800 Hardware Installation Manual page 479

Chapter 5 Installing the Cisco MGX Switch or Gateway
Step 11 Attach the end of the wire (from
Figure
Attach the other end of the wire from
Step 12
Use a Phillips-head screwdriver and two screws to attach the plastic cover over the terminal block on the
Step 13
DC PEM.
Turn on the power source and turn the DC PEM power switch on
Step 14
Verify that the fans are running by listening or feeling for air movement. The following LEDs should
Step 15
be lit:
•
•
•
•
Connect the External Clock
This step is optional. For information, see
Connect the Alarms
This step is optional.
Note
Dry contact relay closures are available for forwarding MGX 8950 switch alarms to an alarm system.
Separate visual and audible alarm outputs are available for critical, major, and minor alarm outputs, and
the outputs are provided through the use of a DB-15 connector on the PXM user interface back card
(PXM-UI-S3 and PXM-UI-S3/B).
Complete the following steps to connect the external clock:
Verify that you have a PXM-UI-S3 or PXM-UI-S3/B back card installed in slots 7 and 8 in the upper rear
Step 1
bay of the switch.
Connect the DB-15 cable to the ALARM port on the PXM-UI-S3 or PXM-UI-S3/B back card.
Step 2
Note
Connect the other end of the cable to the alarm source.
Step 3
Connect the MP Connection
This step is optional.
Note
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
5-62.
AC and DC LEDs on each power supply should be green.
DC OK LED on each DC PEM should be green.
Status LED on the PXM45 should be green.
Standby LED on each service module should be yellow.
See Appendix B, "Cable Specifications"
Step 10) with the ring or space lug to the –48 VDC, as shown in
Step 10 to the DC source
"Connect the External Clock" section on page
for cable requirements.
Cisco MGX 8800/8900 Series Hardware Installation Guide
Installing the MGX 8950 Switch
B-7.
5-95