Description
Signal
Name
Pin
Data +
D+
A3
Ground
Gnd
A4
USB TYPE-A receptacle is used.
Note
The USB MEM port +5VDC is output. Cisco ASR 920 Router provides power for USB MEM port. This port
operates as a USB host device.
Note
Check Optical Fiber Specifications
The specification for optical fiber transmission defines two types of fiber: single mode and multimode. Within
the single-mode category, three transmission types are defined: short reach, intermediate reach, and long
reach. Within the multimode category, only short reach is available. For information about optical SFP modules,
see the documentation for the SFP module at:
http://www.cisco.com/en/US/partner/products/hw/modules/ps5455/prod_installation_guides_list.html
.
Check Alarm Conditions
The following table summarizes the meaning of the alarm conditions on the Cisco ASR 920 Router.
Table 14: Alarm Condition Summary
Alarm Meaning
Alarm
Type
Port in down state.
Environmental sensor threshold exceeded critical level (voltage, temperature)
Critical
Environmental sensor threshold exceeded major level (voltage, temperature)
Major
Port administratively shut down.
Info
Check LED Indicators
This section describes the different types of front panel LEDs and their behavior.
Cisco ASR-920-20SZ-M Aggregation Services Router Hardware Installation Guide
69
Troubleshooting Aids
Check Optical Fiber Specifications