105U-G Wireless Gateway
User Manual
Page 125
© September 2004
4.14
Connecting 105S Serial I/O
NOTE – Serial I/O Expansion is only possible for 105G Firmware versions 1.50 onwards.
105S modules can be connected to the RS485 port of all 105G units except for the 105U-G-
MD1 unit. 105S modules can be connected to the MD1 if the 105G is configured as
“Repeater-only” - refer section 4.4.8.
Up to 31 x 105S
addresses can be
connected to each
105G. The 105S-1
and 105S-2
modules use one
address per module,
and the 105S-3 and
105S-4 modules
take up two
addresses.
Two enable the
105G serial port for
105S expansion,
select the Enable
box in the
configuration
software.
Note that enabling
105S expansion
also disables on-line diagnostics via the serial port.
Mapping to or from the 105S I/O is the same as if the 105S modules are connected to a 105U
I/O module. Each 105S module has an address between 96 and 127. The 105G acts as a
repeater address in the mapping. The 105G I/O registers can also be mapped to/from the
105S I/O.
Select to use
105S modules