Document No. 565-939
Installation Instructions
Rev. 1, November 1999
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and
models as design improvements are introduced. © 1999 Siemens Building Technologies, Inc.
Siemens Building Technologies, Inc.
Landis & Staefa Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
USA
Document No. 565-939.
Printed in the U.S.A.
Page 4 of 4
Connecting the Open Processor to the
Trane Tracer Summit BCU
Follow these steps to connect the Open Processor
to the Trane Tracer Summit BCU:
1. Turn OFF power to the MBC or RBC enclosure.
2. Following guidelines for P2 Trunk use in
installation instructions (P/N 538-663), install
the Trunk Interface II.
3. Make cable per diagram in Figure 6.
4. Connect the Open Processor to the Trane
Tracer Summit BCU using the guidelines in
Figure 6.
5. Plug in power supply for Trunk Interface II.
6. Turn ON power to the MBC or RBC enclosure.
FLN 1
POWER
BLN
OPEN PROCESSOR
S
-
+
S
-
+
RS-485 TRUNK CABLE
(MAX 4000' / 1219.2 m;
STANDARD 24 AWG LOW CAPACITANCE)
GROUND WIRE TO EARTH
(P/N 538-583)
POWER PACK
RS-232 CABLE
(MAX 50' / 15.24 m)
TRUNK INTERFACE II
GW0104R1
IF OPEN
PROCESSOR IS
LESS THAN
50 CABLE FEET
(15.24 m)
FROM BCU
PANEL,
PLACE TRUNK
INTERFACE II
IN MBC
ENCLOSURE
2
3
7
RS-232 PORT
(25-PIN FEMALE)
RS-232 PORT
(25-PIN MALE)*
TRANE
TRACER SUMMIT
BCU PANEL
TAPE BACK
SHIELD
*STANDARD
RS-232
25-PIN
PC PORT
MALE.
47832
Figure 6. Connecting the Open Processor to the
Trane System.
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