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Introduction

About The ShoreGear 220T1A

The ShoreGear 220T1A Voice Switch connects internal extensions or IP phones to a 

central office (CO) digital trunk line.
The switch provides connectivity through:

•  Two RJ-45 LAN connectors
• 

One RJ-45 T1 port for connecting the switch to a telephone company line

• 

One RJ-45 T1 monitor port for connecting test equipment

• 

One RJ-21X port (male) for connecting the switch to a telephone company punch-
down block, patch panel, or 12-port harmonica connector

• 

One DB-9 (female), RS-232C maintenance port (19200 bps, 8 bits, no parity, 1 stop 
bit, no handshake) for serial communications

• 

One audio input port (3.5 mm stereo) for connecting to a music-on-hold source

• 

One audio output port (3.5 mm stereo) for connecting to a corporate paging system or 
night bell

The ShoreGear 220T1A Voice Switch package contains:

•  ShoreGear 220T1A Voice Switch

•  Power cord

•  Stick-on feet for surface installation

•  Mounting Ears – attachable installation brackets

•  Cable Retainer for the Telco cable (metal bracket with a Velcro strap)

Installation and Servicing

Connections

Mounting the ShoreGear Voice Switch on a Flat Surface

If you plan to mount the switch on a flat surface, first attach the provided rubber feet 
to the bottom corners of the device. (You can stack up to three switches in a surface 
installation.)

Installing the ShoreGear 220T1A in a 19-inch Rack

The SG-220T1A is placed in a 19-inch rack only by mounting a ShoreGear Dual Tray into 
the rack, then installing the SG-220T1A into the Tray. You can install the SG-220T1A on 
the left or right side of the tray. 

Refer to the Quick Install Guide for the ShoreGear Dual Tray for Tray installation 
instructions and information on using the tray.

Installation Location Requirements

To ensure optimum operating conditions for the SG-220T1A voice switch, verify the 
operating environment is adequately ventilated, free of gas or airborne particles, and 
isolated from electrical noise.

Installation Equipment

To install the switch, you need the following equipment:

• 

AC surge protector for the power connection

• 

RJ-45 cables for connecting the switch to the local area network and telco lines

• 

Music-on-hold source with a standard mini-headphone Y-adapter (optional)

• 

Permanent earthing connector for grounding the device

• 

RJ-21 telephone cable (female on end connected to ShoreGear voice switch) for analog 

port connections

• 

RJ-21 to RJ-11 patch panel for connecting telephones and trunk lines

• 

#1 Phillips screwdriver

After setting up the network connections and configuring the ShoreGear 
220T1A Voice Switch for operations, you can connect your T1 line to 
the switch. 
Use an RJ-45 T1 cable to connect your T1 line to the Telco port.

Connecting a T1 Line

Powering on the ShoreGear Voice Switch

After connecting the switch to the network, power on the device by connecting it to an 
AC power source.

1. 

Plug an AC surge protector (not provided) into a grounded AC power source.

2. 

Plug one end of the provided power cord into the receptacle on the back of the switch, 
then plug the other end into the AC surge protector. 

The power LED flashes momentarily, and remains lit. 

• 

If LED is not lit, verify the power cord is plugged into the switch and power source. 

• 

If the LED continues flashing, there is an internal error. Unplug the switch to power it 
off, then power it back on. Refer to the “Configuring Switches” chapter in the 

ShoreTel 

Administration Guide

 for information on flash patterns, or contact the ShoreTel 

Support Services at http://www.shoretel.com.

The LAN ports auto-sense the network transport rate. When the network connection is 
established, the network LED indicates a transport rate of 10 Mbps or 100 Mbps, and 
whether the switch is receiving and transmitting data.

Default 

Switch

Audio Output Port 

(night bell)

Power 

LED

Network 

LEDs

LAN 2 

Connector

RS-232C 

Maintentance 

Port

Status 

LED

Audio Input Port 

(music on hold)

Network 

LEDs

T1 LEDs

T1 LEDs

LAN 1 

Connector

T1 Monitor 

Port

T1 Telco

Port

RJ-21X 

Telco Port

Once the SG-220T1A Voice Switch is secured to a rack or surface-
mounted, you can connect it to the data network. 

Use an RJ-45 Ethernet 

cable to connect one or both of the LAN ports to the network subnet.

While both ports can detect and respond to link status, the switch uses 
only one LAN port at a time.

Connecting the ShoreGear Voice Switch to the Network

Optional Connections

After connecting the voice switch to the LAN, you can make optional 
connections, including input from a music-on-hold source or output to 
your internal paging system.

1. 

Connect a music-on-hold source (CD player or other audio source) to 
the audio input port.

2. 

Connect your site’s paging system to the audio output port.

German: Das ShoreGear Voice-Schaltgerät auf einer ebenen 

Oberfläche montieren

Wenn Sie planen, das Gerät auf einer ebenen Oberfläche zu montieren, befestigen Sie 
zunächst die mitgelieferten Gummifüße an den unteren Ecken des Geräts. (Bei einer 
Oberflächeninstallation können Sie bis zu drei Schaltgeräte übereinander stapeln.)

Attaching an Earthing Connector

To meet electrical safety requirements for proper grounding, you must connect a 
permanent earthing protector between the ShoreGear voice switch and the wiring system 
ground.

1. 

Connect a ground wire (#14 AWG wire or larger) to the screw on the back of the unit 
and to the right of the product label. 

2. 

Connect the other end of the ground wire to the wiring system ground.

CAUTION:

 Always connect the permanent earthing connector before attempting to connect 

the switch to a LAN segment and telecommunication lines.

German: Einen Erdungsleiter anschließen

Um den elektrischen Sicherheitsanforderungen für eine korrekte Erdung nachzukommen, 
müssen Sie einen permanenten Erdungsschutz zwischen dem ShoreGear-Gerät und der 
Erde des Kabelsystems installieren.

1. 

Schließen Sie ein Erdungskabel (Nr. 14 AWG oder größer) an die Schraube an der 
Rückseite des Geräts an, die sich rechts neben dem Produktetikett befindet.

2. 

Schließen Sie das andere Ende des Erdungskabels an die Erde des Kabelsystems an.

VORSICHT:

 Schließen Sie immer zuerst den permanenten Erdungsschutz an, bevor Sie ver-

suchen, das Gerät an ein LAN-Segment und Telekommunikationsleitungen anzuschließen.

Connecting Trunk and Telephone Lines

Use the provided cable retainer to connect the voice switch to the 
telephone company’s punch-down block or patch panel.

1. 

Use a #1 Phillips screwdriver to remove the two screws on either side 
of the RJ-21X port, then place the retainer on the port and re-attach 
the screws.

2. 

Plug the Telco cable into the port, then pull the Velcro strap tightly 
around the cable connector and fasten it.

3. 

Connect the other end of the Telco cable to the punch-down block or 
patch panel.

CAUTION:

 To reduce risk of fire, use only No. 26 AWG or larger (e.g., 24 AWG) UL Listed 

or CSA Certified Telecommunication Line Cord
VORSICHT: Um das Brandrisiko zu verringern, verwenden Sie nur Telekommunikationslei

-

tungen Nr. 26 AWG oder größer (z.B. 24 AWG) mit UL- oder CSA-Zulassung
For detailed information on switch port and trunk configuration, see the “Configuring 
Switches” and “Configuring Trunks” sections in the 

ShoreTel Administration Guide

.

Servicing Procedures

WARNING:

 The SG-220T1A contains no internal field serviceable parts. Return the equipment to 

ShoreTel for any required service procedures.

CAUTION:

 Internal fuses should be serviced only by qualified ShoreTel personnel. If internal fuses 

are blown and require replacement, return the SG-220T1A to ShoreTel for service. 

WARTUNGSVERFAHREN

 

ACHTUNG

: Der SG-220T1A enthält keine internen Teile, die vor Ort gewartet werden können. 

Senden Sie das Gerät an ShoreTel, falls Wartungsarbeiten erforderlich sein sollten. 

 

VORSICHT

: Interne Sicherungen dürfen nur von qualifizierten ShoreTel-Mitarbeitern gewartet 

werden. Wenn interne Sicherungen ausgetauscht werden müssen, senden Sie den SG-220T1A zur 
Wartung an ShoreTel.

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