Pittway NOTIFIER The SYSTEM 5000 Installation Manual page 59

Universal Digital Alarm Communicator Transmitter
The UDACT may be mounted in the System 5000 control panel or remotely in an ABS-8R
or UBS-1 enclosure up to 6000 feet away from the control panel. All power must be removed
from the control panel before making any connections to prevent circuit damage. The EIA-
485 serial interface is connected between the control panel and UDACT using twisted,
shielded pair wire. Power should be wired from the control panel's main power supply 24
VDC (nominal) filtered, non-resettable output to TB1 on the UDACT.
UDACT mounting in System 5000
Remove all power from the System 5000 by disconnecting AC and batteries. Install the three supplied nylon
support posts for the top and bottom left of the UDACT, one aluminum/nylon and one aluminum standoff in the
CHS-4 chassis slot in which the UDACT is to be installed (refer to Figure 6-5). Position the UDACT on the standoffs
and secure on aluminum standoff with a #6-32 screw.
Connect the communication line between the EIA-485 terminal block on the CPU-5000 and TB-1 terminals 3
and 4 on the UDACT being certain to observe polarity (refer to Figure 6-6). Recommended wire is 12 AWG to
18 AWG twisted pair. If no other devices are connected to the EIA-485, install a 120 ohm EOL resistor across
UDACT TB1 terminals 3 and 4.
Connect the supplied Ground Strap from the UDACT Earth Ground terminal on TB3 to the CHS-4 chassis. Connect
24 VDC filtered, regulated power to TB1 terminals 1 and 2 on the UDACT (refer to Figure 6-7).
CHS-4
CPU-5000
Figure 6-5: UDACT Mounting in CHS-4
S5000 15583 Rev.
Aluminum Standoff
and Screw
6/10/96 P/N 15583:
Figure 6-4: ABS-8R
UDACT
Nylon Support Posts
Ground Strap
Nylon
Aluminum Standoff
and
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