Heath-consultants Heath Data Recorder (HDR) Manuel d'utilisateur télécharger pdf (Page 10)

Internal Modem

The HDR may be equipped with an internal modem and phone line surge suppressor. The modem is pre-configured and

pre-wired from the factory, ready for remote communication. If the HDR is equipped with the phone line suppressor, it

will be connected directly into the modem’s RJ-11 connector. A 12-volt battery pack (8 “AA” batteries) is supplied, but

not connected when shipped. The user must connect prior to remote communication. Assuming one two-minute call per

day, every day, the battery should provide approximately 2 years of service.

To connect a phone line to the modem, insert the phone cable through the wire gland into the case (see Figure 1). The

cable must be terminated with a RJ-11 connector. Plug into surge protector if provided; else plug directly to the modem.

The optional phone line surge suppressor will sacrifice itself to protect the equipment in the event of a destructive power

surge on the phone line.

Caution: Unit must be connected to proper ground to allow the surge suppressor to operate properly.

Caution: Internal modem option is not currently certified for use in hazardous environments. An external modem should

be used when necessary. Refer to drawing MTM-308-1 for field wiring requirements on external power and modem

connections to maintain intrinsic safety.

Internal Modem Wiring (with “Call out upon Alarm”)

CTS

RTS

TXM

RXM

GND

INDEX B

STOBE

INDEX A

STOBE

3V SYS

GND

GAS TEMP 2

1.5VDC

GND

12VDC

GND

BUTTON

JP5

CR2032

1 2 3

ASSY#: 77R65-9320

REV F

3.6V "AA" Lithium

OPEN

JP1*

DISPLAY

BACKUP BATTERY

WIRED TO

*Jumper wire

Yellow (CTS)

Red (GND)

Gray (RXM)

Blue (TXM)

Heath 2400

Baud Modem

(Wake-up wire for "Call Out Upon Alarm")

12V Modem Battery

(Wake-up wire for "Call Out Upon Alarm")

J13

Phone Line

Surge

Protector

(Optional)

Connect the RX, TX, GND & CTS wires from the HDR to the modem using the modem harness required (contact

Heath Consultants Inc for this harness). Plug in the jumper wire to JP5.

Note 1: For “Call out upon alarm” feature. The modem harness connects Pin 2 of JP5 to Pin 6 of J13 (Modems

that stay online 100% doesn’t require this jumper).

Note 2: If the “Analog Modem” is NOT selected, the calls will be dialed 2 minutes apart. However, if the “Analog

Modem” is checked, the calls will be completed ASAP (Approximately 20 seconds).

Note 3: A “Manual” alarm must be reset in order to get a second “Call out” alert. An “Auto” alarm will call out

multiple times if the trip points are exceeded in succession.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 44 45

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Heath-consultants Heath Data Recorder (HDR) Manuel d'utilisateur Page 10

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