SNAP Analog Input Modules
The following diagram shows part of a SNAP PAC mounting
Installation
Note module and processor compatibility in the following
table:
rack.
Module connectors
Module
Processor
connector
Retention bar
position zero
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
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
4-channel inputs
SNAP PAC R-series controllers and
SNAP PAC brains, including Wired+Wire-
2-channel inputs less models
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.)
(except SNAP-
AIRTD-10 and
Also the following legacy brains:
SNAP Ethernet, SNAP Simple, SNAP
SNAP-AIRTD-1K) Ultimate; SNAP-DNP-ASDS; SNAP OEM;
serial SNAP brains (B3000, Modbus, Pro-
fibus); B3000-HA; B6
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.
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.)
3. With the module correctly aligned, push on the module
to snap it into place.
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.
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.
Modules require a special tool (provided) for removal.
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.
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
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© 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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