Cisco ASR 903 Installation Guide

Step 2 Connect the other end of the shielded coaxial cable to the GNSS antenna after the primary protector.
The GNSS RF In port should have a primary protector installed to meet the Local Safety guidelines.
Note
• The GNSS RF In coaxial cable shield must be connected to the Facility Equipment Ground through the chassis. The
chassis must have the ground wire connected to the Facility Equipment Ground.
Figure 82: Installing the GNSS Module in the RSP
Inserting the GNSS Module2Screw on the GNSS Module1
Connecting Ethernet Cables
The Cisco ASR 903 Router interface modules support RJ45 or SFP Ethernet ports. For instructions on how
to connect cables to Ethernet SFP ports, see Connecting Cables to SFP Modules.
The RJ45 port supports standard straight-through and crossover Category 5 unshielded twisted-pair (UTP)
cables. Cisco Systems does not supply Category 5 UTP cables; these cables are available commercially.
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect
the Gigabit Ethernet 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.
Warning
When installing the cabling to the RSPs, we recommend that you leave a service loop of extra cabling sufficient
to allow for fan tray removal.
Note
Follow these steps to connect the cable to a copper Gigabit Ethernet port:
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Connecting Ethernet Cables

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English