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The X.21, V.35, RS-485, EIA-449, EIA-530, and IRIG-B standards are not currently supported by software.
Note
E and M Interface Module Pinouts
Table 39: RJ45 Front End Pinout
Usage
5
3
2
Type 1
Description
Signal
Pin
—
SB
SB
—
48V signaling
battery
SIG_BAT_N48V
1
M
Signaling input
M_SIG_IN
2
Not used in 2-wire
mode
R
Ring, audio input
RING_AUDIO_IN
3
4-wire mode: Output
2-wire mode: InOut
R1
Ring, audio
input/ouput or
output
RING_AUDIO_IN_OUT
4
T1
Tip, audio
input/output or
output
TIP_AUDIO_IN_OUT
5
Not used in 2-wire
mode
T
Tip, audio input
TIP_AUDIO_IN
6
E
Signaling output
E_SIG_OUT
7
—
SG
SG
—
Signaling ground
return
SIG_GND_RETURN
8
Management Ethernet Port Pinout
A single management copper ENET port supporting 10/100/1000Base-T operation exists on each RSP. There
is no direct access to the CPU of the other RSP. It uses a standard RJ45 jack.
This is not a data plane port.
Note
The table below summarizes the Management Ethernet port pinout.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
174
Troubleshooting
E and M Interface Module Pinouts
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