E L A N H O M E S Y S T E M S
Page 36 © ELAN Home Systems 2009 • All rights reserved.
S128P
INSTALLATION MANUAL
External Power Connections
Use the V+ and G screw terminal connections at the bottom edge of the SPP Precision Panel to connect 2
conductor wires (14-18AWG) to power VIA! Touch Panels that DO NOT use the Cat-5 power wiring option at the
touch panel and DO use the external power connector located on the touch panel. This application is typically used
for long wire runs greater than 110 feet in length. It is not necessary to use both the Cat-5 power connection
(located on the ZONE punchdown locations) and the External Power connectors described here.
VIA!70
External
Power
Connector
Figure 3-14: External Power Connections
RS-485 Expansion Connections
The RS-485 EXPANSION punchdown connectors channel RS-485 signals (ZNET) generated by the multi-room
controller. The RS-485 information sent to these punchdowns is identical to that sent to the ZONE locations
(Z#C). The RS-485 EXPANSION locations simply allow additional punchdown positions and typically WILL BE
needed when installing touch panels, touchpads, and keypads in an S128P system.
NOTE: The S128P Controller, generates ZNET information for status
feedback. Make sure to set the ZNET/VNET switch to the ZNET
position in any S128P-based system.
+
+
+
+
-
-
-
-
Figure 3-15: RS-485 Expansion Connections
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