Veris Technologies MSP3 - Operating Instructions - Manual (Page 111)

Pub. #OM17-MSP3
6-37
3. Testing continuity from the circuit board through the communication cable
a) Remove the steel cover and unscrew the plastic lid from the external Controller.
b) Look for the brown Molex 3-pin connector circled in Figure 14.4. The color sequence
(left->right) should be white-green-black. CAREFULLY wiggle each wire to check for
a loose connection.
c) Check continuity between the following pins:
Figure 14.4 Brown Molex connector on circuit board (POWER MUST BE DISCONNECTED
BEFORE TESTING)
d) Check continuity from brown Molex connector to 9 pin serial connector; this tests
continuity from the circuit board to the DataLogger or PC. (Figure 14.5)
Figure 14.5 Testing continuity from Molex connector to serial connector
Molex Connector 4-pin connector 9 pin serial connector
White 2 3
Green 1 2
Black 3 5