Operating Instructions

Setting Up the Hardware
Siemens Building Technologies, Inc. 2-3
Figure 2-3 illustrates the RS-485 hookup between the Trunk Interface II module and the P2
Controller BLN port connector.
P2 Controller TI II
Fix
W
orkstation
RS-485
1000' (350m) MAX.
RS-232
50' (350m) MAX.
25DB(m) to 9DB(I)
Connector
s on Cable
GW0583R1
Figure 2-1. Interconnect Block Diagram.
RED
BLACK
SCREW
HEADS FACE
DOWN
SCREW
EADS FACE
UP
TI-II
CONNECTION
P2 CONTR
OLLER
BLN POR
T
CONNECTION
CLEAR
RS-485 CABLE
GW0584R1
+
-
s
+
-
s
Figure 2-2. RS-232 Hookup.