HMR3000

www.honeywell.com

3

PIN CONFIGURATION

Pin Number

Pin Name

Description

1

OP/CAL

Operate/Calibrate (open = operate)

2

TD

Transmit Data, RS-485 (B+)

3

RD

Receive Data, RS-485 (A-)

4

RDY/SLP

Ready/Sleep Input (open = ready)

5

GND

Power and Signal Ground

6

RN/STP

Run/Stop Input (open = run)

7

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

RS-485 BALANCED I/O INTERCONNECTS

HMR3000

HOST PC

D

D

R

R

TD

TD

RD

RD

GD

GD

HMR3000

HOST PC

D

D

R

R

TD

TD

RD

RD

GD

GD

HOST PC

D

R

A-

B+

HMR3000

R

D

RD(A)

TD(B)

HOST PC

D

R

A-

B+

HMR3000

R

D

RD(A)

TD(B)