•
If both T1/E1 interfaces are connected to their patch panels in a different configuration (TX to Transmit
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.
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
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.
Warning
Recommended Patch Panel
We recommend using the following T1/E1 patch panels:
The following patch panels are introduced:
• CABLE-16T1E1—Cable for 16-Port T1/E1 Interface Module, 12 feet
• CABLE-32T1E1—Cable for 32-Port T1/E1 Interface Module
• PANEL-16-BNC—Breakout panel with 16 T1/E1 75-ohm BNC ports
• PANEL-32-RJ4—Breakout panel with 32 T1/E1 100/120- ohm RJ48 ports8
Also, the following patch panels are available from Optical Cable Corporation (http://www.occfiber.com).
•
48-port T1 RJ45 patch panel (part number DCC4884/25T1-S)
•
16-port E1 BNC patch panel (part number DCC16BNC/25T1-S)
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 tables below detail the supported cables with the Cisco ASR 903 Router.
The Cisco ASR 903 Router currently only supports the EIA/TIA-232 connector.Note
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
61
Installing the Cisco ASR 903 Router
Connecting Serial Cables
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