3
Siemens APOGEE P1 Communications Interface
User Connections to the Main Serial Port (P1)
The serial port on the Option allows the following APOGEE P1 links to be made.
RS485
Electrical Connections
2-wire
differential
Number of transmitters and transceivers
allowed per differential pair of wires
32 transceivers
Maximum cable length
4000ft/1200 metres
Technology Box
6053
6055
Technology Box
1 2 3 4 5 6
TB1
Terminal Block
1
2
1
2
PLG1
BI SYNCH
1
Switch SW1
Figure 1 Option showing Terminal Block TB1 and DIL Switch SW1
DIL Switch (SW1) Settings
Set this switch to select 2-wire operation, and to select "terminator out".
Switch
Status
Description
1 OFF
ON
unused
2-wire (default)
2 OFF
ON
Terminator out (default)
Terminator in
Note:
All units in the system must have switch 2 set to OFF. Siemens personnel will add
terminators if needed to the FLN.
1
2
ON
OFF
Switch SW1
Summary of Contents for Siemens APOGEE P1
Page 6: ......