Section 3. ET Instrumentation Installation

604 Ohm

(LI190SB)

Open

(LI1200X)

100 Ohm

(LI200S)

1 K

(HMP35C)

Open

(CS500, HMP45C)

Open

 

SW 12V (CS500, HMP45C)

Open (HMP35C) 5V

FIGURE 3.2-2. Default Sensor Switch Settings

3.3 Communication and Data Storage Peripherals

One communications kit can be mounted to the ET Enclosure back plate. Communications kits ordered with the ET Enclosure are pre-mounted and pre- wired; no further connections inside the enclosure are necessary. Follow the "External Installation" procedures outlined below to make the external connections.

If you received a telecommunications kit separate from the ET Enclosure, follow the "Internal Installation" procedures outlined below.

3.3.1 Phone Modems

Phone modems enable communications between the ET Enclosure and a Hayes compatible modem in your PC over a dedicated phone line. Phone line surge protection in built into the ET Enclosure.

P/N 10588 Cable

RJ11 Patch

Ground

Modem

Cord

Wire

 

FIGURE 3.3-1. Phone Modem Mounting and Connections

3-6