Bioscrypt Inc. VSTICLASS Manual De Usuario

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Document #430-90003-08
© Copyright 2003, Bioscrypt Inc.  All rights reserved.
Power Distribution & Device Hookup
The Veri-Series product as well as other components in the system will rely on
power provided to the system for operation.  In a small installation, power may be
provided by means of an AC adapter placed near the V-Prox reader itself.  In
larger installations, power will be distributed from either a central source or various
sources.
Power to the Veri-Series units should be:
o
 
Isolated from other equipment
o
 
Filtered
o
 
Protected by means of a uninterruptible power supply (UPS) or battery
backup
o
 
If transients are an issue in the installation, a transient voltage suppression
device is also recommended
When planning a system, know the power requirement of each device. If multiple
devices are to share a common power supply, care must be exercised to avoid
excessive voltage loss on the wires.  Voltage loss can lead to communication
problems when devices are talking/listening on different ground references.
Voltage loss is directly proportional to wire resistance and the current the wire
carries. Place the power supply as close to the equipment as possible. Select
appropriate wire size for the load. The Veri-Series readers run on DC power
between 6 and 24 VDC (V-Smart operates between 8-12V DC and V-Station
between 12-24V DC).  Power requirements are as listed in Table 1.
V-Smart (all
models)
V-Prox/V-Flex/
V-Pass
V-Station (all
models)
Power Requirement:
5 Watts
5 Watts
5 Watts
Input Voltage Range:
8-12VDC
6-24 VDC
12-24 VDC
Peak Current:
6 VDC
N/A
800 mA
N/A
12 VDC
400mA
400 mA
500mA
24 VDC
N/A
200 mA
200mA
Current at 12 VDC:
Verification
300-400 mA
300-400 mA
300-400 mA
Idle (non V-PASS)
160 mA
60 mA
300 mA
Idle (V-Pass)
N/A
150-200 mA
N/A
Table 1: Veri-Series Power Requirements