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INSTALLATION MANUAL
CAA480A
Elevator Controller
CONNECTING THE E-BUS
The CTV900A Controller uses the E-Bus to communicate with all accessories
in the system. All information, programming data, etc. is accomplished through
the E-BUS. Refer to Figure 1 for more details. To connect the CAA480A to the E-BUS:
1. Connect the "A+" terminal of the CAA480A to the "A2+" terminal of the CTV900A.
2. Connect the "B-" terminal of the CAA480A to the "B2-" terminal of the CTV900A.
3. Connect the "GND" terminal of the CAA480A to the "GND" terminal of the CTV900A.
Figure 1: Connecting the E-BUS
4] INSTALLING THE TAMPER SWITCHES
Installing tamper switches allows the CAA480A
to detect when the cabinet door is opened and/
or when the cabinet is removed from the wall. If
needed install the tamper switch(es) as follow.
• Install the wall switch plastic spacer on
the back at bottom left side of the box as
shown in Figure 2a.
• Install the wall tamper switch using the
supplied bolts and nuts as shown in the
following Figure 2b.
• Install the door tamper switch by aligning
the switch holes to the pre-installed
plastic bracket pins. Press firmly to
secure the tamper switch in position.
See Figure 2b.
A2+
B2-
GND
TMP
TMP
CTV900A
Controller
CAA480A
Elevator
Controller
A+
B-
GND
TAMPER
TAMPER
A+
B-
GND
To Next CAA480A
Elevator Controller
Figure 2a: Installing
plastic spacer
Before
After
Figure 2b: Installing the
tamper switches
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