Rev G
REF TEK 130 Multi-Channel Users Guide
5/14/2021
96223-00-UG
Reftek Systems Inc.
15
Channels 7-12 RT588 Connector
The channel 7-12 connector on the 130-MC provides inputs for an external sensor. The internal
A/D card must be re-configured in order to work with an optional external sensor. It is optional
to add another A/D card to use six more channels.
RT588
Connector
MC Pin
Name
Direction
Electrical Desc
Voltage
Range
Note
Channel 7
1
SENS +
Input
CH 7
±10 Volts
2
SENS -
Input
CH 7 Sensor -
±10 Volts
3
TEST +
Output
CH 7 Test +
RS-485
4
TEST -
Output
CH 7 Test -
5
PWR
Output
Sensor power
18 or 24V
6
GND
-
Power ground
7
SHIELD
-
8
No Connect
Channel 8
9
SENS +
Input
CH 8
±10 Volts
10
SENS -
Input
CH 8 Sensor -
±10 Volts
11
TEST +
Output
CH 8 Test +
RS-485
12
TEST -
Output
CH 8 Test -
13
PWR
Output
Sensor power
18 or 24V
14
GND
-
Power ground
15
SHIELD
-
Channel 9
16
SENS +
Input
CH 9
±10 Volts
17
SENS -
Input
CH 9 Sensor -
±10 Volts
18
TEST +
Output
CH 9 Test +
RS-485
19
TEST -
Output
CH 9 Test -
20
PWR
Output
Sensor power
18 or 24V
21
GND
-
Power ground
22
SHIELD
-
23
No Connect
Channel 10
24
SENS +
Input
CH 10
±10 Volts
25
SENS -
Input
CH 10 Sensor -
±10 Volts
26
TEST +
Output
CH 10 Test +
RS-485
27
TEST -
Output
CH 10 Test -
28
PWR
Output
Sensor power
18 or 24V
29
GND
-
Power ground
30
SHIELD
-
Channel 11
31
SENS +
Input
CH 11
±10 Volts
32
SENS -
Input
CH 11 Sensor -
±10 Volts
33
TEST +
Output
CH 11 Test +
RS-485
34
TEST -
Output
CH 11 Test -
35
PWR
Output
Sensor power
18 or 24V
36
GND
-
Power ground
37
SHIELD
-
38
No Connect
Channel 12
39
SENS +
Input
CH 12
±10 Volts
40
SENS -
Input
CH 12 Sensor -
±10 Volts
41
TEST +
Output
CH 12 Test +
RS-485
42
TEST -
Output
CH 12 Test -
43
PWR
Output
Sensor power
18-24V
44
GND
-
Power ground
45
SHIELD
-
