Owner`s manual

6
Input Pin # Input

Ground 1 14 Ground
Ground 2 15 Channel 16 DI Channel # Pin #
Channel 8 3 16 Channel 15
Channel 7 4 17 Channel 14 1 10 & 22
Channel 6 5 18 Channel 13 2 9 & 21
Channel 5 6 19 Channel 12 3 8 & 20
Channel 4 7 20 Channel 11 4 7 & 19
Channel 3 8 21 Channel 10 5 6 & 18
Channel 2 9 22 Channel 9 6 5 & 17
Channel 1 10 23 Ground 7 4 & 16
Ground 11 24 Ground 8 3 & 15
Ground 12 25 Ground + -
Ground 13  Polarity

Figure 4: Single-ended Input Connections Figure 5: Differential Input Connections
1.2.5 V78 CRM-1 8-CHANNEL CONTROL
RELAY MODULE
The V78 CRM-1 has a DB-25 female connector and
controls eight electromechanical form-C single-pole-
double-throw (SPDT) relays. Each relay consists of
three contacts: a "wiper" (common) contact, a normally
open (NO) contact, and a normally closed (NC) contact.
Figure 6 below shows the contact connections.
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 NO
Relay #3 NO 9 22 Relay #7 NC
Relay #4 Wiper 10 23 Relay #8 Wiper
Relay #4 NC 11 24 Relay #8 NC
Relay #4 NO 12 25 Relay #8 NO
No Connect 13 