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Installing the Cisco ASR 907 Router
Cable Type
X.21 DCE
EIA/TIA-530 DTE
EIA/TIA-530 DTE
Table 13: Interface Cables for 68-Pin Connector
Cable Type
4-port EIA-232 DTE
4-port EIA-232 DCE
4-port EIA-232 DTE
4-port EIA-232 DTE
4-port EIA-232 DTE
For more information on cable specifications and pinouts, see Troubleshooting.
Connecting the Fan Tray Alarm Port
The fan tray includes an alarm port that maps to 4 dry contact alarm inputs.
The pins on the alarm port are passive signals and can be configured as Normally Open (an alarm generated
when current is interrupted) or Normally Closed (an alarm is generated when a circuit is established) alarms.
You can configure each alarm input as critical, major, or minor. An alarm triggers alarm LEDs and alarm
messages. The relay contacts can be controlled through any appropriate third-party relay controller. The
open/close configuration is an option controlled in IOS.
Warning
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect
the alarm 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.
Only Pins 1, 2, 4, 6, and 8 are available for customer use. The remaining pins are for Cisco manufacturing
test, and should not be connected. Use a shielded cable for connection to this port for EMC protection. To
understand the pinouts on the alarm port in Troubleshooting.
Procedure
Step 1
Attach an RJ45 cable to the alarm port.
Product Number
Length
Male/Female
CAB-SS-X21FC
10 ft.
Female
CAB-SS-530MT
10 ft.
Male
CAB-SS-530FC
10 ft.
Female
Product Number
CAB-HD4-232MT
CAB-HD4-232FC
CAB-QUAD-ASYNC-F
CAB-QUAD-ASYNC-M
CAB-9AS-M
Connecting the Fan Tray Alarm Port
Connector
DB-15
DB-25
DB-25
Length
Male/Female
Connector
10 ft.
Male
DB-25
10 ft.
Female
DB-25
10 ft.
Female
RJ-45
10 ft.
Male
RJ-45
10 ft.
Male
DB-9
Cisco ASR 907 Router Hardware Installation Guide
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