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SmartNode 4660 & 4670 User Manual
ISDN BRI NT (Net)
The BRI phone port uses an 8-pin RJ-45 connector (the pinout is shown in
Note
Pins not listed are not used.
ISDN BRI TE (User)
The BRI TE port uses an 8-pin RJ-45 connector (the pinout is shown in
Pins not listed are not used.
Note
Note
All pins between the NT and TE ports are connected during power failure.
Fallback relay operation:
FXS
The FXS ports use an RJ-11 connector with 6 positions. The middle two positions, 3 and 4, are used according
Table
13.
to
Note
Pins not listed are not used.
ISDN BRI NT (Net)
Table 13. ISDN BRI NT Port: RJ-45 socket
Pin
3
4
5
6
Table 14. ISDN BRI TE Port: RJ-45 socket
Pin
3
4
5
6
When the unit is not powered, the fallback relay connects
•
pins 3, 4, 5, and 6 of the BRI 0/0 and BRI 0/1 ports
together. This enables you to place calls to the PSTN even if
the unit is powered down.
Table 15. FXS Port: RJ-11 socket
Pin
3
4
Table
13).
Signal
Rx+
Tx+
Tx-
Rx-
Table
13).
Signal
Tx+
Rx+
Rx-
Tx-
Signal
Ring (-)
Tip (+)
D • Port Pin-outs
55
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