Introduction
51
SmartNode 4552 & 4562 Getting Started Guide
D • Port pin-outs
Introduction
This section provides pin-out information for the ports of the SmartNode.
Ethernet
Note
Pins not listed are not used.
ISDN BRI 0/1 Phone (NT/Net) port
The BRI phone port uses an 8-pin RJ-45 connector (the pinout is shown in
table 8
).
Note
Pins not listed are not used.
Note
All pins between the
Phone
and
Line
ports are connected during power failure.
Fallback relay operation:
•
When the unit is not powered, the fallback relay connects pins 3, 4, 5, and 6 of the net
and the user ports (fallback) together. This enables you to place calls to the PSTN even if
the unit is powered down.
•
Line power applied to the
Line
port is fed through to the
Phone
port at all times and
independent of the fallback relay’s status.
Table 7. RJ-45 socket
Pin
Signal
1
TX+
2
TX-
3
RX+
6
RX-
Table 8. RJ-45 socket
Pin
Signal
3
Rx+
4
Tx+
5
Tx-
6
Rx-
Содержание SMARTNODE 4552
Страница 17: ...SmartNode 4552 4562 overview 17 SmartNode 4552 4562 Getting Started Guide 1 General information ...
Страница 18: ...SmartNode 4552 4562 overview 18 SmartNode 4552 4562 Getting Started Guide 1 General information ...
Страница 47: ...47 Appendix C Cabling Chapter contents Introduction 48 Ethernet 48 ISDN BRI 49 ...
Страница 53: ...53 Appendix E SmartNode 4552 4562 factory configuration Chapter contents Introduction 54 ...
