Hdr pcb layout – Heath Consultants Heath Data Recorder (HDR) User Manual

Page 6

Advertising
background image

6

HDR PCB LAYOUT

C

T

S

R

T

S

CD

T

X

M

RXM

G

N

D

G

N

D

P

U

L

S

E

I

NP

UT

G

N

D

TXD

RXD

P

U

L

S

E

O

UT

B

G

N

D

P

U

L

S

E

O

UT

A

G

N

D

P

3

+

E

P

3

+

S

P3

-

E

P3

-

S

GND

P2

+E

P2

+S

P2

-

E

P2

-

S

GND

P1

+E

P1

+S

P1

-

E

P1

-

S

GND

GND

GAS

T

EM

P

GND

INDEX B

STOBE

INDEX A

STOBE

3V SYS

GND

GAS TEMP 2

1.5VDC

GND

12VDC

GND

BUTTON

COM 2

COM 1

PRESS 3

PRESS 2

PRESS 1

JP5*

CR2032

3V

1 2 3

ASSY#: 77R65-9320

REV F

3.6V "AA" Lithium

OPEN

JP1*

INDEX INPUT

MAIN

BATT

CONN

12VDC

EXT

CONN

DISPLAY

BACKUP BATTERY

BACKUP

BATTERY

MEMORY

(HVC ONLY)

GAS TEMP

PROBE #2

PROBE #1

DATA

MODEM

DIRECT

WIRED TO

J13

J14

J11

J10

J7

J6

J5

J9

J8

J12

J1

J11

J2

NOTE:

External connections to the pcboard should be made by acquiring locking harnesses for Modem

connections (J13) and External 12V power (J11), Pulse input (J14) & (2) Pulse outputs (J10).
Contact Heath Consultants customer service to get these harnesses.

* JP1: This jumper switches the lithium power from the pcboard circuit.
* JP5: When using the internal 2400 baud modem, a special harness is required for “Call out upon alarm”

feature. This harness connects Pin 2 of JP5 to Pin 6 of J13 (External modems that stay online 100%
doesn’t require this option).

Advertising