Owner`s manual

M SERIES DAC
CABLING
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29
Once the V78 CRM-1 has been installed in the M Series chassis, connect a cable with
a DB-25 male connector to the input connector, J2. The wiper (common), normally
open (NO), and normally closed (NC) contacts of each relay are provided on a
specific pin. Connect your control circuitry to the desired relay contacts as shown
below.
Circuit Pin # Circuit
Connection Connection
Relay #1 Wiper 1 14 Relay #5 Wiper
Relay #1 NC 2 15 Relay #5 NC
Relay #1 NO 3 16 Relay #5 NO
Relay#2 Wiper 4 17 Relay #6 Wiper
Relay #2 NC 5 18 Relay #6 NC
Relay #2 NO 6 19 Relay #6 NO
Relay #3 Wiper 7 20 Relay #7 Wiper
Relay #3 NC 8 21 Relay #7 NC
Relay #3 NO 9 22 Relay #7 NO
Relay #4 Wiper 10 23 Relay #8 Wiper
Relay #4 NC 11 24 Relay #8 NC
Relay #5 NO 12 25 Relay #8 NO
No Connection 13
Relay Contact Connection
V79/V80 Pinout
The V79 PDI-1 and V80 PDI-2 are installed in the M Series chassis as described in
the installation section of this manual.
NOTE: The V79 PDI-1 or V80 PDI-2 cannot be installed as Module 1. If a
V79 PDI-1 or V80 PDI-2 is removed from a module slot and a different V79
PDI-1 or V80 PDI-2 is installed in that location, the newly installed module
acquires the previous module's configuration. Moving an V79 PDI-1 or V80
PDI-2 to a different module location requires reconfiguration because the