User's Manual

Page 12

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