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Instruction Manual
Installation - Electrical Connections (continued)
Remote I/O & Interface Connector
Nine-pin D male. (Mating connector: InstruTech p/n 000263 + 000264)
pin number
1
2
3
4
5
6
7
8
9
Relay Connector
Six-pin pluggable terminal strip (Mating connector: Phoenix p/n1803617 or InstruTech p/n 000347)
pin number
1
2
3
4
5
6
Gauge Connector
VGC-301 - Nine-pin D female. (Mating connector: InstruTech p/n 000XXX + 000YYY)
CVG Gauge tube - Custom connector (Mating connector: InstruTech p/n 000ZZZ)
VGC-301 pin number
1
2
3
4
5
6
7
8
9
InstruTech, Inc
pin description
RS485B TX/RX
RS485A TX/RX
RS485B TX
RS485A TX
RS232 TX
RS232 RX
analog signal output (non-linear, linear, or log-linear)
signal ground
relay disable
pin description
relay 1 common
relay 1 NC
relay 1 NO
relay 2 common
relay 2 NC
relay 2 NO
connects to
CVG gauge pin number
InstruTech VGC-301 Convection Vacuum Gauge Controller
NC
cable shield
3
3
2
5
1
1
NC
page 8
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