4 / 8
Cascading of head-ends (master/slave)
If a system consists of several head-ends, the following points apply:
●
The master LED identifies whether the head-end operates as the master (LED is green) or as the slave (LED is off).
●
The configuration and software updates for the system are performed via the master. For this purpose the computer
on which the USW 800 configuration software is running must be connected to the master.
1)
●
For a software update of the
system
via a USB stick, the stick must be plugged into the
master
.
1)
see below for more info
Cabling
, P. 5.
Installation and commissioning
Installation
CAUTION
The head-end is approved exclusively for indoor installation, using the wall mounting plate supplied. The
installation location must satisfy the following conditions:
●
The installation surface must be not readily flammable and must be sufficiently stable.
●
To allow free circulation of air around the device, the clearances shown in Fig. 2 must be ensured.
●
The permissible environmental conditions must be satisfied; see
Technical data
, P. 6ff.
●
The device must not be exposed to dripping or splashing water.
●
The power plug must be easily accessible and be easy to insert / withdraw.
The head-end is mounted as follows:
1. Mount the wall mounting plate horizontally on the mounting surface; see
Ⓑ
in Fig. 3. Points to note:
–
To attach the plate use 3 flat-head screws with a diameter of 4.5 to 5 mm and appropriate wall-plugs if necessary.
–
When inserting the centre bottom screw, use the washer supplied.
2. Insert the head-end
Ⓐ
into the wall mounting plate
Ⓑ
; see Fig. 3.
3. Tighten the screw
Ⓒ
.
200 mm
200 mm
100 mm
100 mm
200 mm
5
6
7
8
9
Fig. 2: Allow the necessary clearance for air circulation
A
B
C
1.
2.
Fig. 3: Insert the head-end
