Edwards Signaling XAL127 Loop Expander Card - Manuel

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XAL127 Loop Expander Card Installation Sheet
EN FR
EN: Installation Sheet
Operation
The XAL127 loop expander card provides an additional device
loop on the control panel. The card expands the control panel's
device capability to 254 device addresses total, 127 per loop
(any combination of detectors and modules).
Installation
The loop expander card connects to connector J7 on the main
circuit board.
Note: Installation limits are under the jurisdiction of local
authority.
To install the loop expander card:
1. Power down the panel and disconnect the batteries.
2. Locate connector J7 on the main circuit board. It is below
the primary loop card.
3. Connect the card to connector J7 as shown in the
installation diagram. Make sure you properly align the
connector pins and plastic mounting standoffs so that they
lock into place.
4. Connect the field wiring. See “Wiring.”
5. Power up the panel and connect the batteries.
Figure 1: XAL127 installation
Loop expander
card
Connector J7
Plastic mounting
standoffs
Primary loop card
Wiring
The card provides either Class B or Class A wiring options.
Figure 2: Class B wiring
Loop SEC
Loop card
+
–
Loop PRI
+
–
Loop
device
Loop
device
Data line