Reference Manual
Terminal board configurations
MAN-0081, Rev 5
June 2016
Terminal board configurations
7
Section 3:
Terminal board configurations
There are multiple terminal board configurations facilitated by the JB series junction box. This allows
effective, safe, and accurate terminations and sensor separation requirements across the Net Safety
product line. These configurations are outlined below.
Each model of the multi-purpose junction box contains a PCB with different components for features
that are applicable to specific models of Net Safety products, such as meter test jacks or a magnetic
switch. Refer to the specific transmitter, detector, or sensor manuals for detailed instructions about
using these options.
3.1
Flame detection
In the following drawings, the flame detector wiring side refers to wiring between the flame detector
and the junction box terminals. Panel/PLC/DCS/RTU wiring side refers to wiring between the power
source and the junction box. Wiring should be done according to the designated terminal connectors.
3.1.1
Models: UVS-A, and UV/IRS-A
Flame detector wiring
Terminal
Color
Function
1 (GND)
Green
Earth ground
2
Not used
3
Not used
4
Blue
MVI
5
White
Vdc (+)
6
Black
COM (-)
7
Red
4–20 mA
Power and output wiring
Terminal
Function
1 (GND)
Earth ground
2
Not used
3
Not used
4
MVI
5
Vdc (+)
6
COM (-)
7
4–20 mA
Meter test jacks
MVI test switch (JB-MPS only)
JB-MPS-A/S or JB-MPNS-A/S
Note:
Shield should be terminated
at the Panel/PLC/DCS/RTU
Содержание Net Safety JB Series
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