genesis 32-Output Controller - Technical Manual
Page 10 V4, O/C Manual – Nov 2005
X X
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 operates 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 necessary 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 guarantee 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 connected 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.