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E&M Pinouts
8-Pin
1
Pins 1, 2, 7, and 8 are not used.
2
TE refers to terminal-terminating layer 1 aspects of TE1, TA, and NT functional groups (this applies to
ISDN BRI S/T WIC).
3
NT refers to network-terminating layer 1 aspects of NT1 and NT2 functional groups.
The following table lists the connector signals and pinouts for ISDN BRI U Port Signals and Pinouts (RJ-45).
Table 23: ISDN BRI U Port Signals and Pinouts (RJ-45)
8-Pin
3
4
5
1
Pins 1, 2, 7, and 8 are not used.
E&M Pinouts
The following table lists the connector signals and pinouts for an E&M port
Table 24: E&M Pinouts
Pin
1
2
3
4
Cisco VG310 and Cisco VG320 Voice Gateways Hardware Installation Guide
76
1
2
TE
1
Signal
Descri p t i o n
Two-Wire Operation, Type
1
SM
-48V
—
signaling
battery
M-lead
Signaling
M
input
R
Ring,
—
audio
input
R or
Ring,
R
R1
audio
i n put / o ut p ut
or
output
3
NT
Function
No connection
Signal—Tip or Ring
Signal—Tip or Ring
2
3
4
SB
—
—
M
M
M
—
—
—
R
R
R
Cable Specifications and Information
Polarity
Four-Wire Operation, Type
1
2
3
—
SB
SB
M
M
M
R
R
R
R1
R1
R1
4
—
M
R
R1
OL-31292-01
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