Fairbanks FB2550 DAT SERIES DRIVER ACCESS TERMINAL - Manual (Page 85)

Section 4: Input/ Output
2/2013 85 51303 Rev. 1
5.5.2. MULTI-FUNCTION BOARD 20mA WIRING
The Multi-function Board ( 29907 ) processes the Keypad and Touch Screen Input.
– One USB Port is dedicated to the Auxiliary Keyboard.
– On the board is a removable two gigabite (2GB) flash memory used for
backup. An external pin drive can also be used for memory backup.
J1 DESCRIPTION
PASSIVE LOOP
1 LOOP+ (External Resistor)
2 RLOOP+
3 LOOP_SW
ACTIVE LOOP
3 LOOP_SW
5 LOOP_RET
A. Typical Connections – Passive (Multi-Function Board)
B. Typical Connections – Active (Multi-Function Board)
J1 Description 1605 / 1605T TB1 Description
2 RLoop+ 1 + 15 vdc
3 Loop_SW 7 C-Loop +
2
Jumper
8
GND
C-Loop -
J1 Description 1605 / 1605T TB1 Description
3 Loop_SW 7 C-Loop +
5 Loop Return 8 C-Loop -
Internal Calibration Lockout Jumper
When jumper shorts the two pins
together, Calibration is prevented.