23
Siemens Building Technologies
Cerberus Division
E1481b
06.2000
9
Appendix A: STT/GW-21 Connection
The STT is a device manufactured and sold by Cerberus Guinard. It can be connected
to the Gateway GW-21 in two different ways, shown in Fig. 17 and Fig. 18.
9.1
First case
Using this configuration the LMS system does not see the STT subsystem: its role is
purely local. The communication line that connects GW-21 to STT works only
from
the
GW-21
to
the STT. Up to 3 CS11 can be connected to the gateway and all three of
them can use the STT.
GW-21.xx
CS11
STT
Fig. 17 STT as synoptic panel driver
STT has to be configured as STT subsystem on the gateway and it must not be config-
ured on LMS. STT used as synoptic panel can be connected to any available UARTs.
Summary of Contents for Cerberus GW-21
Page 4: ......
Page 41: ...37 Siemens Building Technologies Cerberus Division E1481b 06 2000 ...
Page 42: ......
