Tii SVM-1R-P User Manual

P/N 92225601 • Rev B• 7/9/2008

Warranty: If this unit fails during the warranty period, contact tii customer service to authorize return. Unit may be returned prepaid.

Model SVM-1R-P

Indoor Switchable Voice Module

Installation Note

Description

VoIP

From

MTA/EMT

Phone at
location

3
2

3

2

Telco
Input

3

2

1. The tii SVM-1R-P (Switchable Voice Module) is a
microprocessor controlled module that provides seamless
switching from Telco to VoIP service in multiple dwelling
units (MDU’s).

The tii SVM-1R-P is for indoor use only.

Installation

1. Remove the unit from the bag and inspect it for damage. If
damaged, obtain another unit.

2. Locate a suitable flat, dry area to install the unit.

3. The SVM-1R-P should be located near the first
appearance of the Telco and VoIP Phone. The SVM-1R-P
is supplied with double faced tape for secure installation.

Features

Figure 2

Wiring

House Phone

1. Plug one end of the RJ-11 cable to the Local/Aux. Phone
receptacle on the SVM-1R-P. Plug the other end to the
phone at location (Figure’s 2 & 4).

Figure 1

Digital Phone Modem

2. Plug one end of another RJ-11 cable to the digital phone
modem receptacle on the SVM-1R-P. Plug the other end
to the RJ-11 output from MTA/EMTA of cable modem
(Figures 2 & 4)

Telco

3. Plug on end of the RJ-11 cable to the Telco Input
receptacle on the SVM-1R-P (Figures 2 & 4).

4. Wire the other end of the cable to the Telco input and
other phone connections in multiple dwelling units.

Testing

Reset Button

Opening

VoIP from MTA (Pin 3)

Telco Input (Pin 2)

Telco Input (Pin 3)

TELCO
VoIP from MTA (Pin 2)

TELCO

MTA

MTA

TELCO

DIGITAL
MODEM

LOCAL
PHONE

Local Phone (Pin 2)
Local Phone (Pin 3)

SVM-1R-P

FUNCTIONAL DIAGRAM

Figure 4

Note: Hardware reset is needed to switch device to its
initial state. The initial state for the SVM-1R-P is Telco
mode.

1. For initial test connect Local Phone and MTA only. Check

for dial tone, if tone is present then the device isn’t reset.

Proceed to next step. If tone isn’t present skip step 2.

2. Gently push the reset button once with a blunt object to
ensure the service to the customer is from the Telco
Service Provider, observe the green LED blinking.

3. The SVM-1R-P will automatically switch to VoIP line and
stay in this mode until reset again.

CAUTION:
TO AVOID PERMANENT DAMAGE TO RESET

BUTTON DO NOT USE EXCESSIVE FORCE OR A
POINTED OBJECT TO ACTIVATE THE RESET
BUTTON.

Figure 3