Connecting Electrical Bus Lines - Belden Hirschmann OZD Genius G12 Serie Manuel

3 Setting Up

3.3 Connecting electrical bus lines

The installation regulations which apply to the Genius bus
must be observed.
Only cables approved for the Genius bus should be
used.
The Serial 1 port of a device is connected to the Serial
1 port of the adjacent devices. This also applies for the
Serial 2 port (no cross-over connection).
The Shield In connection of a device is connected to
the Shield Out connection of the upstream device.
As a result, the Shield In connection of the first device
as well as the Shield Out connection of the last device
remain free.
The beginning and end of the bus must be terminated
with a resistor rated according to the specifications for
Genius bus cables. A resistor with a rating of between
75 ž and 150 ž (0.5 W) must be used depending on the
cable used.
Terminating
resistor
Serial 1
Serial 2
Shield in
Shield out
Fig. 8: Connection of devices in Genius bus
SER 1 Data line S 1
Data line S 2
SER 2
Shield line, input
SHD IN
(connected to housing via a capacitor)
Shield line, output
SHD OUT
(connected to housing)
Fig. 9: Pin assignment of 4-pin connector
35
The signal processing time for the OZD Genius G12 ...
and the physical delay caused by the fiberoptic cable
must be taken into consideration when the system is
configured.
Detailed information regarding installation and configura-
tion can be found in the Genius bus specifications and
the configuration directives from the control unit manu-
facturer (see also Section 3.7 on page 37).
The interface is a 4-pin connection with a self-locking
mechanism. The plug must be engaged on the socket!
z
Genius bus lines which are completely or partially instal-
led outdoors should not be connected, otherwise any
lightning strikes in the immediate vicinity could destroy
the repeaters. Optical cables should be used for bus
connections which are routed out of buildings!
OZD Genius G12
System
Port 1
Port 2
Port 3
1 0
S 2
S 1
SER 1
SER 2
SHD IN
SHD OUT
3.3 Connecting electrical bus lines
Warnung!
Terminating
resistor
Serial 1
Serial 2
Shield in
Shield out
Version 05 07/2014