Installation
20
UDACT Instruction Manual PN 50050:H 09/16/2002
Internal Installation
CAUTION: Remove all power from the control panel by disconnecting AC and batteries before
installation or making any connections to prevent personal and/or circuit damage.
CHS-4/CHS-4MB Chassis Mounting
The UDACT is installed on a CHS-4/CHS-4MB Chassis within the control panel backbox as described
and shown below:
Figure 2 CHS-4/CHS-4MB Installation
Step Action
1 Disconnect AC power and disconnect batteries.
2 Snap three (3) nylon support posts in the three (3) mounting holes of the
UDACT as shown below.
3 Install one aluminum/nylon standoff and one aluminum standoff onto the
studs of the chassis slot in which the UDACT is to be installed.
Tighten securely.
4
Position the UDACT on the standoffs, snap into place and secure at
aluminum standoff with a #6-32 screw.
Tighten securely.
!
UDACT-21.cdr
Nylon Support Post
Nylon Support
Posts
Aluminum
Standoff
Aluminum/Nylon
Standoff
CHS-4/CHS-4MB
Securing Location
Note: These instructions are for mounting the UDACT in a rear
position of the CHS-4/CHS-4MB. The board must then be grounded
using a grounding wire connected from the TB3 EARTH terminal to
the nearest standoff connecting the chassis to the cabinet. Do not
mount the UDACT in a front position of the CHS-4.
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