Connecting A Serial Cable For Smdr - Comdial DX-80 Technical Manual

Installing the DX-80

2.17 Connecting a Serial Cable for SMDR

SMDR (Station Message Detail Recording) can be output from the DX-80 system for use with serial
printers of collection in call accounting devices. Connection of the SMDR device to the DX-80 is
accomplished through the serial data port on the CPM labeled "SMDR." Connection to serial printers
may require customization of the serial cable used to make the connection.
Whenever a call accounting system (third-party device) is deployed, connection is often no more com-
plicated than using a straight-through, 9-pin, female to male, serial cable. (Use Radio Shack model 26-
117B for good results.)
Connection to the PC/call accounting system is made via an available 9-pin serial port connector that is
designated as COM1 or COM2 in the PC configuration.
Once the cable is linked between the collection device and the DX-80 CPM-SMDR port, the collection
device must be programmed for compatible link protocol (baud rate). At default the SMDR port baud
rate is set at 9600 bps.
1 2
DCD RXD
Follow these steps to connect a serial cable for SMDR:
1. Remove the KSU cover (four screws at each corner) of KSU1.
2. Connect a static discharge wrist strap to a suitable earth ground. Be sure that the strap is touch-
ing bare skin.
66
CPM
"SMDR" serial port connector
(straight-
(Dedicated means that this AC
outlet has no other equipment
connected on this circuit
breaker.
SMDR 9-pin Serial Cable Pin Designations
3 4 5
TXD DTR GND
Comdial
6 7 8
DSR RTS CTS
9
RI
October, '03