EMS 2X-A-LB-W Installation Sheet

2X-A-LB-W Loop Board Installation Sheet
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Description
The 2X-A-LB-W Loop Board provides two additional loops
(LOOP3 and LOOP4) and four additional supervised outputs
(OUT5, OUT6, OUT7, and OUT8) to compatible EMS
2X-A Series Fire Alarm Control Panels running the 900 Series
protocol.
Installation
WARNING: To avoid personal injury or death from
electrocution, disconnect the control panel from the mains
power supply and batteries before installing this product.
Recommended cable
Use 0.13 to 3.31 mm² (26 to 12 AWG) shielded or unshielded
twisted-pair cable. Use the earth studs in the control panel
cabinet for termination.
See your control panel installation manual for more information
on cable and wiring recommendations.
To install the expansion board:
1. Install the loop board into slot 2 of the control panel
chassis, as shown in Figure 1.
Push firmly to ensure a good connection. Secure the
board with the screws provided.
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2. Connect loops and configurable outputs as shown in
Figure 2.
Loop earth connection: Connect one side to the earth
studs in the control panel cabinet (not to the loop earth
terminal on the expansion board). The other side can be
left floating.
Output connection: If an output is not used, install an end-
of-line resistor across the unused terminals to avoid an
open circuit fault on the output (see Table 2 on page 2).
3. Restore power and add the device to the control panel
configuration (see the control panel installation manual for
further details).
4. Configure loops, outputs, and all connected devices.
Check loop installations using a loop load calculator.
See your control panel installation manual for detailed
information on loop and configurable output wiring and
configuration.
Maintenance
Basic maintenance consists of a yearly inspection. Do not
modify internal wiring or circuitry.
1 / 2 P/N BCN-3100016-EN • REV 001 • ISS 10JUN24