ACU-100 SATEL
13
communication to be reached, while avoiding a risk of incidental masking of the controller
and devices by people moving around the facility.
Before permanently mounting the system components, you should check the level of signal
received by the controller from individual devices. A helpful instrument for checking the signal
level is the SATEL-made ARF-100 tester. If the signal level from a particular unit is too low
(less than 40%), a change of the device position will be necessary. At times, it is sufficient to
move the device some ten to twenty centimeters to get a significant improvement of the
signal quality. Having reached the optimal level of radio signal from all devices, you can
proceed to permanently mounting them in position.
Several ACU-100 controllers can work within each other's range. Automatic synchronization
with the wireless systems already in use is always performed when the controller is switched
on, and after each operation of addition/removal of supported devices. The number of
wireless devices already working within the range of each other depends on the R
ESPONSE
PERIOD
(see D
ESCRIPTION OF FUNCTIONS
,
OPTIONS AND COMMANDS
) and can vary from 150 to
450. The higher the response frequency, the lower the number of devices that can work
within each other's range.
Recommendations for installation of particular wireless devices can be found in the manuals
delivered with respective devices.
4.1 I
NSTALLATION OF
ACU-100
WIRELESS SYSTEM CONTROLLER
The ACU-100 controller should be installed indoors, in spaces with normal air humidity. Its
electronics board is mounted in the
OPU-1 A
plastic housing. Before fastening the controller
to the wall, make inlets/outlets in the rear wall of the housing for cables to connect the
controller to the control panel or ACX-100 expansion modules.
Caution:
The cables should not be laid in the close vicinity of the antenna, as this may cause
radio communication interference.
Temporary connection of LCD keypad or computer is required for programming or diagnosing
the controller, if it not operates together with the INTEGRA or VERSA control panels.
4.2 C
ONNECTING
LCD
KEYPAD TO THE CONTROLLER
The LCD keypad must be connected to the RJ socket with four-wire cable. Connection of the
keypad communication bus to the RJ socket is shown in Fig. 3.
Address of the keypad to be connected to the ACU-100 controller must be set as 0.
If properly connected, the keypad will display a message, the upper line of which will include
the device name and program version info. If the
[TROUBLE] LED goes on in the
keypad, one of the functional outputs is active. In order to start the service mode, the service
code must be entered. The service mode is indicated by lighting of the
[SERVICE] LED.
1 - +KPD
2 -
3 -
4 - COM
CKM
DTM
1 2 34
1 2 34
Fig. 3. Sequence of wires in the plug connecting LCD keypad with controller.
1 – view of plug in the socket. 2 – view of plug from the pins side.
