Cisco ASR 920 series 매뉴얼 - 페이지 34

{카테고리_이름} Cisco ASR 920 series에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Cisco ASR 920 series 36 페이지. Aggregation services router
Cisco ASR 920 series에 대해서도 마찬가지입니다: 설치 매뉴얼 (36 페이지), 시작하기 (6 페이지), 설치 매뉴얼 (42 페이지), 하드웨어 설치 매뉴얼 (46 페이지)

페이지 인쇄

Connecting Cables to a GPS Interface

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

To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect

Warning

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

Connecting Cables to a GPS Interface

The following sections describe how to connect cables from the Cisco ASR 920 Series Router to a GPS unit

for input or output timing of frequency:

Connecting a Cable to the ToD Interface

SUMMARY STEPS

1. Connect one end of a straight-through Ethernet cable to the GPS unit.

2. Connect the other end of the straight-through Ethernet cable to the ToD/1-PPS port on the Cisco ASR

920 Series Router.

DETAILED STEPS

Step 1

Connect one end of a straight-through Ethernet cable to the GPS unit.

Step 2

Connect the other end of the straight-through Ethernet cable to the ToD/1-PPS port on the Cisco ASR 920 Series Router.

Warning

To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect

the ToD 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.

Note

For more information about GPS-port pinouts, see

Installing the Cisco ASR 920 Series Router

Chapter 5, "Troubleshooting"

Chapter 5, "Troubleshooting."

Installing the Cisco ASR 920 Series Router