HMR3000_16 Datasheet, PDF (3/7 Pages) Honeywell Solid State Electronics Center – Up to 20 Updates per Second

HMR3000
PIN CONFIGURATION
Pin Number
1
2
3
4
5
6
7
8⁽¹⁾⁽²⁾
9⁽¹⁾
Pin Name
Description
OP/CAL Operate/Calibrate (open = operate)
TD
Transmit Data, RS-485 (B+)
RD
Receive Data, RS-485 (A-)
RDY/SLP Ready/Sleep Input (open = ready)
GND
Power and Signal Ground
RN/STP Run/Stop Input (open = run)
CT/RST Continue/Reset (open = continue)
+5V
Regulated Power Input (+5 volts)
V+
Unregulated Power Input (+6 to +15 VDC)
Pin assignments for 9-pin “D” connector.
(1) Power input shall only be applied to either Pin 8 (+5VDC) or Pin 9 (Unregulated +6 to
+15VDC).
(2) Exceeding the voltage specifications for Pin 8 may damage the HMR3000.
RS-232 UNBALANCED I/O INTERCONNECTS
HOST PC
HMR3000
TD
D
RD
R
RD
R
GD
TD
D
GD
RS-485 BALANCED I/O INTERCONNECTS
HOST PC
A-
D
R
B+
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HMR3000
RD(A)
R
TD(B)
D
3