P/N 92220301 • Rev J•
9/2/2008
Warranty:
If this unit fails during the warranty period, contact tii customer service to authorize return. Unit may be returned prepaid.
Model SVN-SERIES
Switchable Voice Network Interface Device
SVM-SERIES
Switchable Voice Module
Patents Pending
Installation Note
Description
1. This combined Installation Note covers the
description and installation of the TII Series
SVN and SVM. The SVN is enclosed in an
indoor/outdoor housing, while the SVM is
supplied as an individual module.
2. The SVN and SVM can be mounted indoors or
outdoors using the standard hardware
provided. If mounting outdoors the SVN and
SVM should be mounted in a weatherproof
housing.
3. The SVN and SVM have been designed to
provide automatic switching of a customer’s
telephone provider from Telco to Digital Voice
Service automatically after installation when
the number is ported.
4. The SVN or SVM get its power from the Digital
Voice Service line, and switches to Digital
Voice Service after validating telephone
ringing voltage presence on this line. The
green LED will blink slowly when the SVM is
receiving power from the Digital Voice Service
Line.
5. The SVN or SVM can be reset by using the
reset push button accessible on the side wall
of the device. The SVN or SVM must be
powered by the ATA / EMTA for the reset
function to operate.
6. IDC rockers are used to terminate 26-22 AWG
solid wire.
Installation
1. Locate a suitable flat, dry area to install the
unit.
2. Prior to installing the SVN, decide on the (2)
knockout locations that are to be used (See
Figure 1). Using a flat bladed screwdriver
knockout the (2) locations and use two #8
screws to mount the unit.
Figure 1
Wiring
1. Lift the blue rocker for the digital voice service
wires (MTA) to the full up position. DO NOT
strip wires. (See Figures 2 & 3)
Knockouts
(x4)
