Honeywell IAQPoint2 User Manual page 1279

PCB Terminals
JP1
1
P1 P3
P2
ADJUST 20mA
ADJUST 4mA
P10 P11
P9
U31
1 1
J16
J17 J18
+ - + - +
A. Power and Communication: J15 Input: Lower Terminal Output:
Upper Terminal (for communication use 2-24 AWG twisted and
shielded cable, Belden 9841 or equivalent)
B. J8: Pull down resistor
C. J7: 1-2, end of line resistor 2-3, end of line RC filter resistor
D. J12: Pull up resistor
E. 4-20 mA Outputs: J16 to J23 4-20 mA outputs may be set to be
Current sourcing or Loop-powered
Current Sourcing: S2 to S9 jumpers at 1-2, 3-4 and 5-6
Loop-Powered: S2 to S9 jumpers at 2-3, 4-5 and 6-7
When the output reads 3.33mA, the 420I does not see the
corresponding transmitter.
WARNING
512228
2/08
J1
1
P4 P5 P6
P12 P13
P14
1 1 1 1
J19 J21
J20
-
+ - + + -
-
OUTPUT 1 - 8
E
A dedicated power source must be used with the 420I when
using current sourcing as input 4-20mA configuration.
420I User Manual
Honeywell
U8
PCB420IR8
Made in Canada
508848
P8
P7
P16
P15
P.U.
1 1
J22 J23
- -
+ +
Wiring Details
PCB Terminals
C4 C1
C2
PT1
ON
D6
U29
J7
J12
J8
RC
P.D.
R
V V
B A
+ -
SHIELD
A
LD5
POWE
R
LD2
FAULT
D
C
B
19