Specifications
Table Of Contents
- Uplink Module Hardware Reference
- Copyright
- Contents
- Models Covered By This Reference
- Why You Should Read This Reference
- Where To Find More Information
- Compatible Switch Units
- Hardware Description
- Uplink Module Overview
- AT-A35/SX 1-port 1000BASE-SX (SC connector)
- AT-A35/LX 1-port 1000BASE-LX (SC connector)
- AT-A39 1-port 10/100/1000BASE-T (RJ-45 connector)
- AT-A40/SC 1-port 100BASE-FX Multimode Fibre (SC connector)
- AT-A40/MT 1-port 100BASE-FX Multimode Fibre (MT-RJ connector)
- AT-A41/SC 1-port 100BASE-FX Singlemode Fibre (SC connector)
- AT-A41/MT 1-port 100BASE-FX Singlemode Fibre (MT-RJ connector)
- Hardware Features Common To All Models
- Troubleshooting
- Port, Connector, and Cable Combinations
- Contacting Us

Hardware Reference 11
C613-03026-00 REV F
Switch-Unit LEDs
The following tables may be helpful when diagnosing possible operational
faults. These LEDs are on the front or rear panels of AR800 Series Modular
Switching Routers, Rapier Switches, and Rapier i Switches.
Table 11: System LEDs common to all AR800, Rapier, and Rapier i models.
LED State Function
Power Green The switch unit is receiving power and the
voltage is within the acceptable range
Fault Red The switch unit or its management
software is malfunctioning
1 flash A switch-unit fan has failed. (The LEDs will
not indicate an RPS fan failure.)
3 flashes If an RPS is connected, the switch-unit’s
PSU (Power Supply Unit) has failed
4 flashes If RPS monitoring is enabled (using the SET
SYS RPSMON=ON command), the RPS
PSU has failed
5 flashes If RPS monitoring is enabled, an RPS is not
connected
Off Normal operation
RPS
1
(Redundant
Power Supply)
Green An RPS is connected to the switch unit
In use
2
(Rear panel)
Green An NSM is installed, is receiving power,
and is operational
Off No NSM is installed, or the NSM is not
installed correctly (the switch unit has not
recognised the NSM)
Swap
2
(Rear panel)
Green The NSM and PICs can be hot swapped
Off The Hot Swap button must be pressed
before the NSM or PICs can be hot
swapped, or the software release does not
support hot swapping
3
1. DC Switch and Switching Router models do not have RPS connectors and their RPS LEDs will not
function.
2. Not included on the Rapier 48, G6, G6F/SX, G6F/LX, or G6F/MT.
2. Hot swapping is supported by software release 2.3.1 or later.