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Model K-AB-D25 / M34
INPUT SELECTION
The K-AB is designed to be operated by an externally supplied control signal. The following control
signals can be used to operate the K-AB. Install the jumpers as shown to configure the K-AB.
Control Lead
Contact
RS-232
RS-232
TTL
Gang Switching
An additional setting enables the K-AB card to be used in a multi-circuit gang (simultaneous) switching
arrangement. When used in this manner, one master card controls one or more slave cards. Jumper
E4 sets the master or slave nature of the card.
No Jumper = Independent
Master =
Slave =
Only one card in each card nest can be set as Master.
INSTALLATION AND CONFIGURATION
Connect External Control Source
Standalone models use a nine pin D Subminiature female connector to access the externally supplied
signals. Dataprobe supplies a mating connector kit to assist in fabrication of the proper control cable.
Rack Mounted cards have Control leads terminate on 50 pin Telco connectors on the rear of the
K-AB-R-12 nest. See Appendix A for 9 Pin and Telco Connector Pinouts.
The K-AB is often used in conjunction with other Dataprobe remote switch controlling equipment:
Smart-Line: Multi-Switch Control via Tone dial telephone.
Call Director: Dial Line Sharing device with Switch Control capabilities.
Code Activated Switch: Multi-Switch Control with ASCII Commands.
Dataprobe can supply interconnect cables for any application
Logic Required
Close=B Open=A
Low=B High=A
High=B Low=A
Low=B High=A
Card Is Master
Card Is Slave
Jumper E1
Jumper E2
Out
Contact
Out
EIA/TTL
Out
EIA/TTL
In
EIA/TTL
Use any Control Input, as above
Use any Control Input, as above
Set for Contact Closure
Page 2
Jumper E3
LO
LO
HI
LO
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