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Introduction

About The ST1D/ST2D Voice Switches

Each 

ST1D/ST2D

 Voice Switch connects internal extensions or IP phones to a central 

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

• 

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. You can use a paging adapter to provide a balanced output 

as well as a contact closure ideal for overhead paging systems. 

Refer to the 

Paging Adapter (PA-1) Quick Install Guide

 for information about the Paging Adapter.

• 

Two RJ-45 10/100/1000 Mbps LAN connectors 

• 

One DB-9 (female), RS-232C maintenance port (default 115,200 bps, 8 bits, no 

parity, 1 stop bit, no handshake) for serial communications

• 

USB port for logging/troubleshooting

• 

RJ-48C Telco port(s) for connecting the switch to telephone company lines. The 

ST1D has one RJ-48C Telco port, and the ST2D has two RJ-48C Telco ports. 

These are the T1/E1 configurable connections.

The ST1D/ST2D Voice Switch package contains:

• 

ST1D or ST2D Voice Switch

• 

Power cord

• 

Stick-on rubber feet for surface installation

• 

Mounting Ears - attachable installation brackets

Installation

Connections

Mounting the 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 an ST1D/ST2D Switch in a 19-inch Rack

An ST1D/ST2D switch is placed in a 19-inch rack only by installing a Rack Mount Dual 
Switch Tray into the rack, then installing the ST1D/ST2D into the Tray. You can install an 
ST1D/ST2D switch on the left or right side of the tray. 

Refer to the 

Rack Mount Dual Switch Tray Quick Install Guide

 for information on using the tray.

Installation Location Requirements

To ensure optimum operating conditions for the ST1D/ST2D 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 adapter (optional) 

• 

Permanent earthing connector for grounding the device

• 

#1 Phillips screwdriver

After setting up the network connections and configuring the 

ST1D/ST2D Voice Switch for operations, you can connect your 

T1 or E1 line(s) to the switch. 
Use an RJ-45 T1 or E1 cable to connect your T1 or E1 line(s) to 

the Telco port(s).

For detailed information on switch port and trunk configuration, re

-

fer to the sections “Configuring Switches” and “Configuring Trunks” 

in the 

Mitel Administration Guide

.

Connecting a T1/E1 Line(s)

Powering on the 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 the LED is not lit, make sure the power cord is plugged into the switch and 

the 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 

Mitel Administration Guide

 for information on flash patterns, or contact 

technical support 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 10/100/1000 Mbps, and 

whether the switch is receiving and transmitting data.

Audio

input

port

10/100/1000

Mbps Ethernet

ports

LAN1

RS-232C

maintenance

port

T1/E1

Telco

port

USB 2.0

port

 Status

LED

Audio

output

port

LAN2

Power

LED

Once the ST1D/ST2D Voice Switch is secured to a rack, 
surface-mounted, or wall 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 

creates a data connection on only one LAN port at a time.

Connecting the 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. You can use a Paging Adapter to facilitate paging 

connections. 

Refer to the 

Paging Adapter (PA-1) Quick Install Guide

 

for more information.

Das 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.)

Servicing Procedures

WARNING:

 ST1D/ST2D switches contain no internal field serviceable parts. Return the 

equipment to Mitel for any required service procedures.

CAUTION:

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

fuses are blown and require replacement, return the ST1D/ST2D switch to Mitel for 

service.

WARTUNGSVERFAHREN

 

ACHTUNG

: ST1D/ST2D enthält keine internen Teile, die vor Ort gewartet werden können. 

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

 

VORSICHT

: Interne Sicherungen dürfen nur von qualifizierten Mitel-Mitarbeitern gewartet 

werden. Wenn interne Sicherungen ausgetauscht werden müssen, senden Sie den ST1D/

ST2D zur Wartung an Mitel.

Installing the ST1D/ST2D on a Wall

The ST1D/ST2D is placed on a wall by attaching the ST Voice Switch Wall Mount Bracket to 
the wall, and then attaching the appliance to the bracket. 

Refer to the 

ST Voice Switch Wall 

Mount Bracket Quick Install Guide

 for more information

.

Audio

input

port

10/100/1000

Mbps Ethernet

ports

LAN1

RS-232C

maintenance

port

T1/E1

Telco

ports

USB 2.0

port

 Status

LED

Audio

output

port

LAN2

Power

LED

Attaching an Earthing Connector

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

WARNING: To prevent overheating and fire hazard, do not use the Rack Mount 
Dual Switch Tray to wall mount the following devices: ST1D/ST2D, ST50A/
ST100A, ST200/ST500, or ST100DA. Use the ST Voice Switch Wall Mount 
Bracket to wall mount these devices.

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 

versuchen, das Gerät an ein LAN-Segment und Telekommunikationsleitungen anzus

-

chließen.

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