Tii SVM-4 User Manual

SVM-4-0

Figure 1

Mounting Locations

141 Rodeo Drive tii SVM-4 Series
Edgewood, NY 11717 Multi-Line Sitchable Voice Module
Toll Free 888.844.4720 Rev C 12/07

www.tiinettech.com INSTALLATION NOTE

1. DESCRIPTION

1.1 The tii SVM-4 Series Multi-Line Switchable
Voice Module is used when porting existing
telephone numbers.

1.2 The tii SVM-4 has been designed to provide

automatic switching of a customer’s

telephony provider from Telco to Digital
Voice Service automatically after installation
when the number is ported.

1.3 The tii SVM-4 can come equipped with an
optional secondary telephone line surge
protection to enhance the Digital Phone
service reliability.

1.4 The SVM-4 should only be used for indoor
applications, if mounting outdoors the SVM-4
should be mounted in a weatherproof
housing.

1.5 The SVM-4 is powered 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.

1.6 The SVM-4 may be reset by using the reset
push button accessible on the side wall of
the device. The SVM-4 must be powered by
the ATA / EMTA for the reset function to
operate.

1.7 IDC rockers are used to terminate 26-22
AWG solid wire.

2. WARRANTY

2.1 See tii Warranty. If this unit fails during the
warranty period, contact tii customer service
to authorize return and return the unit
prepaid. Units that fail due to normal wear or
abuse should be discarded.

3. INSTALLATION (Line 1)

3.1 Remove the unit from the bag and

inspect it for damage. If damaged, obtain
another unit.

3.2 Locate a suitable flat, dry area to install

the unit.

3.3 Prior to installing the SVM-4 pre-drill the

(3) mounting location holes to
accommodate #8 self tapping screws
(See Figure 1).

3.4 Lift the blue rocker for the digital voice

service wires (MTA) to the full up
position. DO NOT strip wires. (See Figs
2 & 3)

3.5 Insert the Digital Voice Service wires

from ATA/EMTA into wire guides
simultaneously until they bottom-out.
While holding the wires in position,
terminate them into the MTA (Blue)
rocker by lowering it to the full DOWN
position. (See Figs 2 & 3) If the
ATA/EMTA is supplying power to the

tii P/N: 92224501

Figure 2

Terminated rocker

Wire loom

Full Up Position

Figure 4

* RESET BUTTON’S

Figure 3

TEST POINTS

DIGITAL VOICE

SERVICE WIRES (L2)

TELCO WIRES (L2)

CUSTOMER WIRING (L1)

TELCO WIRES (L1)

DIGITAL VOICE

SERVICE WIRES (L1)

CUSTOMER WIRING (L2)

DIGITAL VOICE

SERVICE WIRES (L4)

TELCO WIRES (L4)

CUSTOMER WIRING (L3)

TELCO WIRES (L3)

DIGITAL VOICE

SERVICE WIRES (L3)

CUSTOMER WIRING (L4)

SVM, the green MTA power LED
provided on the line will start to blink.

3.6 Disconnect the customer premise wiring
from the Telephone Network Interface Device
(NID). Straighten the ends of the wires, cut
kinked and stripped ends. Lift the Green/Red
rocker to full up position. Insert wires into the
Customer wire rocker holes. While assuring that
wires are fully inserted lower the rocker to fully
seated position (See Fig 3).

3.7 Connect a wire pair from the Telephone NID
to the rocker labeled TEL (orange). Follow
procedure described above for the wire pair
termination (See Figs 2 & 3).

3.8 To keep wire pairs organized, route them
through the molded wire looms. (See Fig. 2)

4 INSTALLATION (Lines 2-4)

4.1 Follow steps 3.4 to 3.8 to connect Line’s 2-4

through the SVM-4.

5 RESET
IMPORTANT: This unit MUST be reset during

initial installation. Follow these instructions to
reset the unit.

5.1 Confirm that the power is connected to the
MTA (Blue) rocker of SVM-4 by observing
green LED blinking.

5.2 Gently push the reset button once with a
blunt object to ensure the service to the
customer is from the Telco Service Provider
(See Figure 4).

NOTE:

THE RESET SWITCH IS DISABLED DURING

RINGING VOLTAGE PRESENCE AND TEN

SECONDS AFTER THE LAST RINGING

VOLTAGE.

tii P/N: 92224501