
Document #51003 Rev.E 01/11/02 P/N 51003:E
31
Optional Modules
Notes:
1.
This arrangement allows use of the UDACT-F simultaneously with the RTM-8F module.
2.
Ferrite cores (P/N FBD-1) are recommended for all applications.
3.
Recommended wire is 12 AWG to 18 AWG (0.75 to 3.25 mm
2
) twisted, shielded pair.
4.
If shielded 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.
Note that the shield end that is not
connected should be insulated to prevent accidental grounding. Do not connect both ends of shield
under any circumstances 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 11 for power requirements.
9.
UDACT-F TB1 Terminals 6 and 7 are for future use. Make no connections to these terminals.
FIGURE 2-12:
External UDACT-F Mounting in ABS-8RF
Supervised and Power-limited ACS (EIA-485) and power connections.
Surge protection can be provided by using one of the UL listed compatible surge
suppressors listed in the Fire•Lite Device Compatibility Document.
+24 VDC
Nonresettable
Power (TB4)
Ferrite
Cores
P/N FBD-1
To Phone
Lines
(supervised)
Solid Earth
Ground
Connection
Future
Use
Shield
MS-9200 Cabinet
Install 120 ohm EOL
resistor (P/N 71244) on
TB1 Terminals 3 & 4, if
last or only device on
EIA-485 line.
UDACT-F in ABS-8RF
(shown with cover removed)
MS-9200
RTM-8F