Commander Installation Guide

7.4.1.2ISDN Interface RJ45 Connector

RJ45 Fixed Socket

Pin 1

Not connected

 

Pin 2

Not connected

 

Pin 3

Tx to network A/Rx from terminal A

 

Pin 4

Rx from network A/Tx to terminal A

 

Pin 5

Rx from network B/Tx terminal B

 

Pin 6

Tx to network B/Rx from terminal B

 

Pin 7

Not connected

 

Pin 8

Not connected

7.4.1.3Com Port

D9, not yet supported, for future development.

7.4.1.4Remote Ports

Each input is the cathode of the LED on an opto-isolator. The anode is connected through a 470R resistor to +5VDC. Therefore to activate a control input, short the pin to ground, i.e. pin

10.Each output is the open collector of a ULN2003 driver chip. Therefore connect the pin through load to +5VDC.

7.4.1.5RJ45

This is the ISDN 2 connector. This must only be connected to an approved ISDN 2 connection or serious damage may occur.

Trilogy Communications Limited

Issue 9

Page 59 of 81

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Trilogy Touch Technology 9 manual Isdn Interface RJ45 Connector, Com Port, Remote Ports, 1.5 RJ45