Fire-Lite UDACT-F Universal Digital Alarm Communicator Transmitter User Manual
Page 15
Document #50049 Rev. E0 01/22/01 P/N 50049:E0
15
Panel Mounting
Notes:
1.
This arrangement allows use of the UDACT-F simultaneously with the RTM-8F module
2.
Ferrite cores are recommended for all applications
3.
Recommended wire is 12 AWG to 18 AWG (0.75 to 3.25 mm
2
) twisted wire
4.
Shielded wire is not required (unless mandated by local AHJ)
If shield wire is used, connect only one end of the shield:
✓ shield may be connected to cabinet (earth ground) at fire alarm panel, or
✓ shield may be connected to TB1 Terminal 5 (shield) at UDACT-F as shown in Figure 2-3. Note that the
shield end that is not connected should be insulated to prevent accidental grounding. Do not connect
both ends of the shield under any circumstance, since a ground fault may result.
5.
Conduit is recommended for external wire runs. Consult local building codes
6.
Connect Ground Strap (supplied with ABS-8RF enclosure) from Earth Ground terminal on the UDACT-F to a
solid building earth ground. Conduit alone will not provide a reliable earth ground.
7.
UDACT-F may be located up to 6,000 feet (1,800 m) away from the host control panel
8.
Refer to “Specifications” on page 10, for power requirements
FIGURE 2-3:
External UDACT-F Mounting in ABS-8RF - MS-9200
MS-9200
UDACT-F in ABS-8RF
(shown with cover removed)
Install 120 ohm EOL resistor
(P/N 71244) on TB1 Terminals
3 & 4, if last or only device on
EIA-485 line.
MS-9200 cabinet
Ferrite Cores
P/N FBD-1
24 VDC
Nonresettable
Power
To Phone
Lines
(Supervised)
Solid Earth
Ground
Connection
DO NOT USE
THESE TERMINALS
Supervised and power-limited EIA-485 and power connections