5-7
Cisco ASR 903 Router Hardware Installation Guide
OL-25178-05
Chapter5 Troubleshooting
Pinouts
Note The X.21, V.35, RS-485, EIA-449, EIA-530, and IRIG-B standards are not currently supported by
software.
Management Ethernet Port Pinout
Table 5 -9 summarizes the Management Ethernet port pinout.
USB Console Port Pinout
Table 5 -10 summarizes the USB console port pinout.
Note The USB Console port +5VDC is input and operates as an USB peripheral device.
USB Flash/MEM Port Pinout
Table 5 -11 summarizes the USB flash/MEM port pinout.
Table5-9 Fan Tray Alarm Port Pinout
Pin Signal Name Description
1TRP0+
2TRP0-
3TRP1+
4TRP2+
5TRP2-
6TRP1-
7TRP3+
8TRP3-
Table5-10 Single USB Console Port
Pin Signal Name Direction Description
A1 Vcc +5VDC (500mA)
A2 D- Data -
A3 D+ Data +
A4 Gnd Ground