SUMMARY STEPS
1.
Confirm that the router is powered off.
2.
Connect one end of the cable to the BITS port using a straight-through, shielded RJ48C-to-RJ48C cable.
3.
Connect the other end to the BTS patch or demarcation panel at your site.
4.
Turn on the power to the router.
DETAILED STEPS
Step 1
Confirm that the router is powered off.
Step 2
Connect one end of the cable to the BITS port using a straight-through, shielded RJ48C-to-RJ48C cable.
Step 3
Connect the other end to the BTS patch or demarcation panel at your site.
Step 4
Turn on the power to the router.
For information about the BITS port pinouts, see the
Troubleshooting
section.
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect
the BITS ports only to intra-building or unexposed wiring or cable. The intrabuilding cable must be shielded
and the shield must be grounded at both ends. The intra-building port(s) of the equipment or subassembly
must not be metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are
designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE)
and require isolation from the exposed OSP cabling. The addition of Primary Protectors is not sufficient
protection in order to connect these interfaces metallically to OSP wiring. Statement
Warning
Connecting Cables to the GPS Interface
The sections describe how to connect cables from the Cisco ASR-920-24SZ-IM Router to a GPS unit for
input or output timing of frequency:
When installing the cables to the RSP, we recommend that you leave a service loop of extra cable to enable
fan tray removal.
Note
Connecting a Cable to the Input 10-Mhz or 1-PPS Interface
SUMMARY STEPS
1.
Connect one end of a shielded mini-coax cable to the GPS unit.
2.
Connect the other end of the shielded mini-coax cable to the 10-Mhz or 1-PPS port on the RSP of the
Cisco ASR-920-24SZ-IM Router.
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
Guide
112
Installing the Router
Connecting Timing Cables
