genesis
32-Output Controller - Technical Manual
Page 10 V4, O/C Manual – Nov 2005
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Improper Star Configuration
Improper Tee Off Configuration
Genesis LAN:
Genesis uses industry standard
RS-485 LAN
communication to ensure fast
efficient network communication between devices. The Genesis LAN oper-
ates at a communication speed of
19,200 baud
between up to
128 devices
over a total LAN distance of up to
1500
meters.
In order to ensure that a high level of performance is achieved, it is neces-
sary to connect the Genesis LAN in the recommended method.
To this end, it must be twisted pair data cable that is used for the Genesis
LAN. Belden 8723 (RS-485) cable,
or equivalent
is recommended.
A standard must be applied when wiring from one LAN leg to another. For
example, the A leg on a Master Unit must always be connected to the A legs
on other Genesis devices, while the B leg must always be connected to the B
legs on other Genesis devices.
A very common communication problem is where the A and B lines are reversed.
If this occurs, then some devices may appear on-line, while others are off-line.
The Genesis LAN is an industry standard multi-drop RS-485 configuration.
Do Not Tee Off
, or
Star
configure your LAN. For STAR configuration
please refer to information on GEN-129 4-way LAN distribution module.
While the LAN may function in these configurations, Genesis cannot guar-
antee proper LAN performance.
genesis
32-Output Controller - Technical Manual
Page 7 V4, O/C Manual– Nov 2005
O/C Module Layout:
H1 – LAN TERMINATION LINK:
The LAN Termination Link should
only be fitted on the last device on the
Genesis LAN. Please refer to page 9
for further information on the Genesis
LAN.
RS-232 PORT
Use to allow connection to PC, or other third
party device communicating with RS-232.
Only available for use if enabled in Genesis
Technician Software.
LAN TERMINALS:
The
A
and
B
LAN termi-
nals are designed for the
Genesis LAN to be termi-
nated into. The
A
and
B
lines must
always
be con-
nected to the
A
and
B
ter-
minals on other Genesis
devices. The shield
(
SHLD
) terminal has been
supplied to secure the cable
shield only. Please refer to
page 9 for further informa-
tion on the Genesis LAN.
32 OPEN COLLECTOR OUTPUTS
Organised into groups of 8, each output is capable of sinking up to
100 mA maximum.
