Connecting A Serial Cable For Pc-Dba - Comdial DX-80 Technical Manual

Installing the DX-80
To control a gate or door:
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.
Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit
boards. Refer to Comdial publication IMI01-005, Handling of Electrostatically
3. Locate the CPM and "BELL" connector jack on the CPM.
4. Using an eighth-inch mini plug, wire the DX-80 BELL contact in series with an external 24vdc
power supply and 24vdc door opening device. Important: Use only 24v or less voltage sup-
ply and Direct Current (dc).
5. Program LBC operation for External Page operation. Door/Gate operation is accomplished by
dialing the External Page code (this code can be programmed onto an available Flexible Feature
Button). For details on programming, refer to the DX-80 Technical Manual, Volume II, Pro-
gramming.

2.16 Connecting a Serial Cable for PC-DBA

You can connect PC-DBA to the to DX-80 system to set up the programable features and system oper-
ations. This connection is rarely permanent and is typically performed only during routine systems
database updates and changes by a qualified technician. Connection of the PC to the DX-80 is accom-
plished through the serial data port on the CPM labeled "PCDBA." Connection is simplified by means
of a straight-through, 9-pin, female to male, serial cable. (Use Radio Shack model 26-117B for good
results.)
Connection to the PC 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 PC and the DX-80 CPM PCDBA port, you can use PC-DBA to
program the DX-80 system and to back up your customer's database.
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WARNING
Sensitive Components , for details.
Comdial October, '03