Connection To Lms - Siemens Cerberus GW-21 Technical Manual

Siemens Building Technologies
Cerberus Division
12.3

Connection to LMS

Fig. 22 and Fig. 23 show how to connect the GW-21 UARTs 3,4, 5, 6 on the screw ter-
minal of the connection board to the LMS for a 9 pin connector and a 25 pin connector
respectively.
Fig. 24 and Fig. 25 show how to connect the GW-21 UARTs 1 and 2 on the two DB9
connectors of the connection board to the LMS for a 9 pin connector and a 25 pin con-
nector respectively.
If there is only one LMS operating station, it can be connected to any UART among
those available. However, if there are two Operating Stations, they must be connected
to UARTs 1 and 2.
TX 1 1 32 31
RX 4 4 34 33
GND 2 2 36 35
GW-21
Fig. 22 Connection to 9 pin D connector (screw terminal block)
RX 4 4 34 33
TX 1 1 32 31
GND
2 2 36 35
GW-21
Fig. 23 Connection to 25 pin D connector (screw terminal block)
Female connector
LMS (PC)
Female connector
LMS (PC)
31
E1481b
06.2000