Electra Elite IPK
Document Revision 1
D
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VSR
3
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S
ECTION
3
USB D
EVICE
This section describes the NEC D
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VSR USB device hardware specifications.
The device is constructed in a UL94 V-0 black polymer and measures 84mm x 72mm
x 25mm (or 3” x 2 3/4 ” x 1”).
3.1
Device Connections
The VSR device has three connectors:
H
One PC USB connector, from which the device derives its power and streams
all speech and control channel information up to the host PC and the Desktop
software application.
H
Two digital telephone line connectors that passively ‘tap’ across the D
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digital
connection and ‘listen’ in high impedance mode to the signalling on the line.
Figure 2
D
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Voice Security Recorder