SNAP Analog Input Modules

Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com

SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com

© 2001–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

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3

Installation

Note module and processor compatibility in the following

table:

All modules can be used with SNAP PAC rac ks and can be

placed in any position on the rack. Two- and four-channel

modules (except the SNAP-AIRTD-10 and SNAP-AIRTD-1K) can

also be used with legacy SNAP M-series and B-series

mounting racks. (For more information on using legacy

hardware, see form #1688, the SNAP PAC System Migration

Technical Note.)

Modules snap securely into place in the row of connectors on

the mounting rack. Each module connector has a number.

Analog input modules and other types of SNAP I/O modules

are mounted on the module connectors starting at module

position zero.

Modules require a special tool (provided) for removal.

The following diagram shows part of a SNAP PAC mounting

rack.

1.

Place the rack so that the module connector numbers

are right-side up, with zero on the left, as shown in the

diagram above. (If your rack has screw connectors, the

screw connectors will be at the bottom.)

2.

Position the module over the module connector,

aligning the small slot at the base of the module with

the retention bar on the rack. When positioning modules

next to each other, be sure to align the male and female

module keys at the tops of the modules before snapping

a module into position.

3.

With the module correctly aligned, push on the module

to snap it into place.

4.

(Optional) Use standard 4-40 x 1/4 truss-head Phillips

hold-down screws to secure both sides of each module.

CAUTION: Do not over-tighten screws.

5.

Follow the wiring diagrams beginning on page 4 to

attach modules to the devices they monitor. Most

modules accept 22 to 14 AWG wire; the SNAP-AITM-8

accepts a maximum of two solid 18 AWG wires.

For faster, easier field wiring installation and maintenance,

use SNAP TEX cables and breakout boards. See Opto 22 form

#1756, the SNAP TEX Cables & Breakout Boards Data Sheet, for

compatibility and specifications.

Modules

Compatible I/O Processors

32-channel inputs

8-channel inputs

SNAP-AIRTD-10

SNAP-AIRTD-1K

SNAP PAC R-series controllers and

SNAP PAC brains, including Wired+Wire-

less models

4-channel inputs

SNAP PAC R-series controllers and

SNAP PAC brains, including Wired+Wire-

less models

Also the following legacy brains:

SNAP Ethernet, SNAP Simple, SNAP

Ultimate; SNAP-DNP-ASDS; SNAP OEM

2-channel inputs

(except SNAP-

AIRTD-10 and

SNAP-AIRTD-1K)

SNAP PAC R-series controllers and

SNAP PAC brains, including Wired+Wire-

less models

Also the following legacy brains:

SNAP Ethernet, SNAP Simple, SNAP

Ultimate; SNAP-DNP-ASDS; SNAP OEM;

serial SNAP brains (B3000, Modbus, Pro-

fibus); B3000-HA; B6

Module

position zero

Module connectors

Processor

connector

Retention bar