VersaTRAK RTU User M anual
Page 15 of 31
Last Revised: 05/23/02
SIXNET
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Box 767
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Clifton Park, NY 12065 USA
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+1 (518) 877-5173
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FAX +1 (518) 877-8346
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Overview
The VT-PB8 is a discrete I/O expansion board for VersaTRAK and Mini-VersaTRAK
RTUs. This board has eight isolated discrete I/O channels and connects to the RTU through
the supplied ribbon cable. Each discrete I/O channel may be configured as an input or an
output by plugging in the appropriate I/O module and defining the channel as an input or
output in the SIXNET I/O Tool Kit configuration.
Discrete
Input Wiring
Up to eight input signals may be connected to the VT-PB8 in sourcing or sinking
configurations. Refer to the diagram below for sample wiring connections.
Discrete
Output Wiring
Up to eight output circuits may be connected to the VT-PB8 in sourcing or sinking
configurations. Refer to the diagram below for sample wiring connections.
Pow er
Requirements
VT-PB8 discrete outputs switch user supplied power. The AC or DC power source may be
separate from the DC power that runs the VersaTRAK. If DC outputs are populated, the same
DC power source may be used for the VersaTRAK or Mini-VersaTRAK, and for the VT-
PB8 discrete outputs.
VT-PB8 Discrete I/O Connections
