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SCOPE OF THIS DOCUMENT
This document covers the following models:
K-AB-D25
K-AB-D25-R
K-AB-M34
K-AB-M34-R
For the purposes of clarity, all above models are referred to as "K-AB ".
Card Nest
K-AB-R-12
Universal 12 position card nest for all K-AB cards above and all other K-AB cards.
GENERAL DESCRIPTION
Dataprobe's Relay Controlled A/B Switches, (K-AB) permits automatic, remote or manual switching of a
Common line between two circuits, A or B. Multiple relays are used to switch the following circuit types:
D25:
25 Pin D Subminiature Connectors; 23 Leads Switched,
Pins 1 (FG) and Pins 7 (SG) Unswitched
M34:
34 Pin 'M' (V.35) Connectors. 19 Leads Switched,
Pins A (FG) and Pins B (SG) Unswitched
When the relays are in the relaxed position, the Common Port is connected to Port A (Position A).
When a selected external control signals is supplied, the relays are energized and the Common Port is
connected to Port B (Position B). The K-AB returns to the A Position when the de-energize conditions
are met.
REF: M\MANUALS\K1\KAB-D25-M34_V970905E.DOC
Technical Support Hotline: (201) 967-8788
11 Park Place / Paramus, New Jersey 07652
TEL: 201-967-9300
Website: www. dataprobe.com Email: tech@dataprobe.com
Installation And Operation
BASIC A/B SWITCHES
K-AB-D25 K-AB-M34
FAX: 201-967-9090
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Summary of Contents for Dataprobe K-AB-D25
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Page 1: General Description
Universal 12 position card nest for all K-AB cards above and all other K-AB cards. GENERAL DESCRIPTION Dataprobe's Relay Controlled A/B Switches, (K-AB) permits automatic, remote or manual switching of a Common line between two circuits, A or B. Multiple relays are used to switch the following circuit types: D25: 25 Pin D Subminiature Connectors;... -
Page 2: Input Selection
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. -
Page 3: Manual Control
Model K-AB-D25 / M34 Page 3 MANUAL CONTROL A front panel three position switch allows Automatic or Manual Control. In the AUTO position, the K-AB switches on the selected Control Signal. In the Manual A or B Position, these controls are locked out and the relays assume the selected position. - Page 4 Model K-AB-D25 / M34 Page 4 APPENDIX A K-AB EXTERNAL CONTROL/STATUS CONNECTORS STANDALONE, 9 PIN D SUBMINIATURE, FEMALE * = FACTORY DEFAULT Pin # Designation EIA Control Voltage High (+VDC = Position B) Control Reference Ground Not Used Contact / Open Collector To Ground EIA/TTL Low = B Position *...
- Page 5 Model K-AB-D25 / M34 Page 5 TELCO PIN NUMBERS...
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Page 6: Warranty
Page 6 TECHNICAL SUPPORT, RETURNS and WARRANTY Dataprobe Technical Support is available 8:30AM to 5:30PM ET to assist you in the installation and operation of this product. To obtain Technical Support call our Tech Support Hotline at 201-967- 8788, or Email us at tech@dataprobe.com. Please have the following information available when you call: •...