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Fig. 5
E-Bus from
the central control unit
Fig. 6
Fig. 7
Fig. 8
E-Bus to other
accessories
4. Wiring
The terminals can be seen in Fig. 2 or in the wiring diagram
glued to the inside of the housing cover.
4.1 Mains supply (Fig. 5)
The external mains supply should preferably be connected
through a separate unswitched fused spur.
Cable type 3 x 1.5 mm
1 - Ensure that the mains supply terminal is de-energised.
2 - Remove mains supply fuse F7 Q.
3 - Check the protective conductor connection to the base
of the housing.
4 - Connect the mains to the mains supply terminals
(neutral N, live L and earth).
5 - Secure the cable to the clips in the rear wall using
cable ties.
4.2 E-Bus (Fig. 6)
Cable type 24 AWG 7 x 0.2 mm is recommended. The total
length of the E-Bus cable must not exceed 500 m.
The power supply unit circuit board SMP 20 and the op tions
(SMT 11, SMR 11) must be connected to the central control unit
via the E-Bus (B1-, B2, B3, B4+). It may be routed in parallel
to other accessories. If shielded cable is used, the shield may
not be laid on the housing of the SAP 20. The shields of all
cables must be connected at one point, e.g. at one of the NC
terminals of SMT 11 or SAR 11.
4.3 Tamper contact (Fig. 7)
The tamper contact of the housing must be connected to the
SMT 11 circuit board. Refer also to the installation instruc-
tions for the SMT 11.
4.4 Back tamper contact
For the back tamper use the option SMZ 91.
5. Powering up the system
5.1 Switch on the 240V mains supply
1 - Ensure that everything is correctly connected and wired
and then switch on the mains supply.
2 - Refi t fuse F7.
5.2 Connect battery (Fig. 8)
1 - Place the battery in the space provided in the base of the
housing.
2 - Connect the pre-installed battery cables (- blue, + red).
3
2
is recommended.
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