Table of Contents
Advertisement
Installing the Cisco ASR 907 Router
Connecting Cables to the Patch Panel
If you are connecting two T1/E1 interfaces to each other, you must cable both interfaces' patch panels together
using a T1 cross-over cable or a T1 straight-through cable. Use shielded cables. The type of cable you use
(cross-over or straight-through) depends on how the T1/E1 interfaces are cabled to their patch panels:
• If both T1/E1 interfaces are connected to their patch panels in the same manner (TX to Transmit and
• If both T1/E1 interfaces are connected to their patch panels in a different configuration (TX to Transmit
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
Warning
connect the T1/E1 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.
Recommended Patch Panel
We recommend the following T1/E1 patch panels:
• 48-port T1 RJ45 patch panel (part number DCC4884/25T1-S)
• 16-port E1 BNC patch panel (part number DCC16BNC/25T1-S)
The patch panels are available from Optical Cable Corporation (http://www.occfiber.com). To order a patch
panel, contact the Sales and Marketing Support staff at Optical Cable Corporation:
• 800-622-7711 (toll-free in the U.S.A.)
• 540-265-0690 (outside the U.S.A.)
Connecting Serial Cables
The figure below shows the supported serial connectors, and the tables detail the supported cables with the
Cisco ASR 907 Router.
RX to Receive, or TX to Receive and RX to Transmit), use a T1 cross-over cable to connect the patch
panels.
and RX to Receive on one interface, and TX to Receive and RX to Transmit on the other interface), use
a T1 straight-through cable (standard RJ45 patch cable) to connect the patch panels.
Connecting Serial Cables
Cisco ASR 907 Router Hardware Installation Guide
109
Advertisement
Table of Contents
