Double Doors; 4-Wire Cc; Checking Cable Requirements; Standard Cable Type - Abus AZAA10000 Installation Manual

shows the wiring method when using 8k2 and 8k2 resistors.
Table 4: FSL Resistor Bands
Zone State 2k2/4k7 FSL
Tamper 0k0 – 1k759
Normal 1k76 – 4k08
Alarm 4k081 – 8k28
Tamper > 8k28

2.3.2 Double Doors

If required, two door contacts can be connected to the same zone using the resistor configuration
shown in Figure 4. In this configuration, the zone must have the Double Doors attribute set (see
page 39). The zone must use 4k7 shunt resistors and a 2k2 EOL resistor.

2.3.3 4-wire CC

This uses a separate pair of wires for the alarm and tamper contacts. No end-of-line resistors are
used. Selecting 4-wire CC normally halves the maximum number of wired zones that can connect
to the Terxon SX.
2.3.4 2-wire CC
This uses a single pair of wires for each detector. No end-of-line resistors are used.

2.4 Checking cable requirements

2.4.1 Standard cable type

Normally, the panel requires standard 7/0.2 un-screened 4-core alarm cable for wiring to keypads
and wired siren/strobe units.

2.4.2 Screened cable

For maximum performance in environments where there is electromagnetic noise, use twisted-
pair screened cable with a characteristic impedance of 100-120 Ohms, such as cable designed for
RS485.
If screened cable is required:
1. Avoid earth loops by connecting the screen on the cable to mains earth at the panel but
Figure 3: FSL connections for 8k2/8k2
1k/1k FSL
0k0 - 0k799
0k8 - 1k4
1k401 - 2k4
>2k4
Alarm
EOL
Tamper
Figure 4: Two detectors per zone (Double Doors)
Alarm
Tamper
2k2/2k2 FSL
0k0 – 1k759
1k76 - 3k08
3k081 - 5k28
>5k28
Alarm
Tamper
4k7/4k7 FSL 8k2/8k2 FSL
0k0 – 3k759 0k0 –
3k76 - 6k58 4k1 -
6k581 - 11k28 8k2 -
>11k28 >9k8
18