UDACT Instruction Manual — P/N 50050:M 12/18/2009 19
Installation Installation and Wiring
Mounting on the NFS-320 chassis
The UDACT is installed on the chassis within the NFS-320 backbox as described and shown
below:
Figure 2.2 NFS-320 Chassis Installation
Step Action
1 Disconnect AC power and disconnect batteries.
2 Remove the KDM-R2 keypad. Do not remove the onboard power supply.
3 Remove the two 1” standoffs from the bottom of the CPU and replace with the two #4-40
x 0.5” standoffs provided with the UDACT.
4 Install the bracket supplied with the UDACT onto the 0.5” standoffs and secure with two
#4-40 x .25” screws provided with the UDACT.
5 Insert the tab at the bottom of the UDACT into the slot on the bracket as indicated.
6 Position the UDACT on the standoffs and fasten with two #4-40 x .25” screws provided.
NOTE: If using the UDACT inside the NFS-320 cabinet, do not install a second option board.
Also, the UDACT must be programmed before re-installing the keypad on the NFS-320.
NFS-320
Chassis
bracket
tab slot
tab
screw and
standoff locations
UDACT-320.wmf
Onboard
Power Supply
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