4.6 Terminal Assignments: BG-241TC, BG-251TC, BG-261TC and BG-281TC
These Terminals May be
Used for Loop Power or
Analog Retransmit, but the
options may not be ordered
together.
Signal, Input and Output Terminal Assignments
Signal, Input or
Output Type
Terminal
Number
Assignment
Signal, Input or
Output Type
Terminal
Number
Assignment
Power
1
2
HI (+)
LO (-)
Communications
(RS-232)
1
2
3
Transmit
Signal Ground
Receive
Voltage / Current
1
2
HI (+)
LO (-)
Communications
(RS-485)
1
2
3
LO(-)
Signal Ground
HI(+)
RTD*
1
2
3
4
Source (+)
Sense (+)
Sense (-)
source (-)
Relay Contacts
1
2
3
4
5
6
7
8
9
10
11
12
HI/HI Normally Open
HI/HI Common
HI/HI Normally Closed
HI Normally Open
HI Common
HI Normally Closed
LO Normally Open
LO Common
LO Normally Closed
LO/LO Normally Open
LO/LO Common
LO/LO Normally Closed
Reluctance Pickup
(Tachometer)
and Wide Range
Frequency
1
2
3
HI (+)
LO (-)
No Connection
Thermocouple
Flying Lead See Flying Lead
Connector
Loop Power
1
2
HI (+) 24 VDC
LO (-)
Analog Retransmit
1
2
LO (-)
HI (+)
* Connect RTD’s as shown below:
4-Wire RTD
3-Wire RTD
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