RTS DSI 2008 User Manual

User Instructions
DSI 2008 Digital System Interface

ADAM, ADAM CS, and Zeus Intercoms

9350-7870-000 Rev C 11/2008

PROPRIETARY NOTICE

SHIPPING TO THE MANUFACTURER

The product information and design disclosed herein were originated by
and are the property of Telex Communications, Inc. Telex reserves all
patent, proprietary design, manufacturing, reproduction, use and sales
rights thereto, and to any article disclosed therein, except to the extent
rights are expressly granted to others.

COPYRIGHT NOTICE

Copyright 2008 by Telex Communications, Inc. All rights reserved.
Reproduction, in whole or in part, without prior written permission from
Telex is prohibited.

WARRANTY NOTICE

See the enclosed warranty card for further details.

CUSTOMER SUPPORT

Te chnical questions should be directed to:

Customer Service Department
RTS/Telex Communications, Inc.
12000 Portland Avenue South
Burnsville, MN 55337 USA
Telephone: [phone]
Fax: [phone]

All shipments of product should be made via UPS Ground, prepaid (you
may request from Factory Service a different shipment method). Any
shipment upgrades will be paid by the customer. The equipment should
be shipped in the original packing carton. If the original carton is not
available, use any suitable container that is rigid and of adequate size. If
a substitute container is used, the equipment should be wrapped in paper
and surrounded with at least four (4) inches of excelsior or si milar
shock-absorbing material. All shipments must be sent to the following
address and must include the Proof of Purchase for warranty repair.
Upon completion of any repair the equipment will be returned via United
Parcel Service or specified shipper, collect.

Factory Service Department
Telex Communications, Inc.
8601 East Cornhusker Hwy.
Lincoln, NE 68507 U.S.A.
Attn: Service

RETURN SHIPPING INSTRUCTIONS

Customer Service Department
Telex Communications, Inc. (Lincoln, NE)
Telephone: [phone]
Fax: [phone]
Factory Service: 800-553-5992

Please include a note in the box which supplies the company name,
address, phone number, a person to contact regarding the repair, the type
and quantity of equipment, a description of the problem and the serial
number(s).

Table

of

Contents

DESCRIPTION AND SPECIFICATIONS ............................................................................................1

General Description ........................................................................................................................................... 1

Features .............................................................................................................................................................. 1

Front and Back Panel Descriptions ................................................................................................................... 2

FRONT PANEL ....................................................................................................................................................................2

ACK PANEL ......................................................................................................................................................................3

B

Specifications ...................................................................................................................................................... 4

INSTALLATION .....................................................................................................................................5

Mounting ............................................................................................................................................................ 5

4-Wire Audio Connections ................................................................................................................................. 5

ADAM, ADAM-CS, OR ZEUS AUDIO CONNECTION ........................................................................................................... 5

UDIO CONNECTIONS FOR THE OTHER 4-WIRE COMMUNICATIONS SYSTEMS ......................................................................6

A

2-Wire Audio Connections ................................................................................................................................. 7

RTS TW AUDIO CONNECTIONS ..........................................................................................................................................7

A

UDIOCOM AUDIO CONNECTION .......................................................................................................................................8

LEAR-COM AUDIO CONNECTION .....................................................................................................................................9

C

THER 2-WIRE AUDIO CONNECTION ..................................................................................................................................9

O

4-Wire Call Signal Connections ....................................................................................................................... 10

CALL SIGNAL CONNECTION FOR ADAM, ADAM CS, AND ZEUS ...................................................................................... 10

C

ALL SIGNAL CONNECTIONS FOR OTHER 4-WIRE COMMUNICATIONS SYSTEMS ................................................................. 13

4-wire Call Send and Call Enable/Inhibit .................................................................................................................................13

4-wire Call Receive .................................. ....................................................................................................................................14

2-Wire Call Signal ............................................................................................................................................ 14

CALL SIGNAL CONNECTIONS FOR AUDIOCOM, RTS TW AND CLEAR-COM ....................................................................... 14

ALL SIGNAL CONNECTIONS FOR OTHER 2-WIRE COMMUNICATION SYSTEMS ..................................................................15

C

OPERATION .........................................................................................................................................17

General Instructions ......................................................................................................................................... 17

Operating Notes for ADAM, ADAM CS and Zeus Intercom Systems .............................................................. 18

ACCESS AND CONFIGURATION .....................................................................................................19

Internal Access ................................................................................................................................................. 19

Mode Dip Switch Settings U301 ....................................................................................................................... 20

Call Signal Option Card Installation ............................................................................................................... 21

CHAPTER 1

Description and Specifications

General Description

The DSI 2008 Dual Digital Hybrid interfaces two, 2-wire intercom lines to two, 4-wire intercom lines. Unlike earlier analog
hybrids, the DSI 2008 features advanced digital signal processing to achieve automatic nulling of the 2-wire lines. Plus, each
hybrid features convenient peak-reading level meters to quickly match the levels between the lines that are being interfaced.
The result is easy and accurate setup. With the DSI 2008, all need for test tones, nulling adjustments and ducking adjustments
have been eliminated.

®

Compatible 2-wire intercom systems include RTS™ TW, Audiocom
include Telex’s ADAM™, ADAM CS™, and Zeus™ Digital Matrix Intercom Systems.

The DSI 2008 is also available with optional call signal interfacing. This option provides bi-directional call signal
compatibility between the 2-wire and 4-wire intercom systems.

With features like digital signal processing, peak-reading level meters and option call signal interfacing, the
DSI 2008 Dual Digital Hybrid assures ease of setup maximum transparency between intercom systems.

, and Clear-Com®. Compatible 4-wire intercom systems

Features

Two Independent Hybrids: Interface two separate 2-wire lines to two separate 4-wire lines.

Automatic Nulling: Digital hybrids eliminate all nulling and ducking adjustments. Quick, trouble-free setup. Puts an end to

concerns about echo and feedback when interfacing 2-wire lines.

Peak Reading Level Meters: Quick and accurate visual audio level adjustment. No extra setup equipment or guesswork is
required.

Direct ADAM/Zeus Audio Connection: Accepts standard ADAM/Zeus DB-9 or RJ-11 keypanel cables.

Transformer Isolated: All audio inputs and outputs are transformer isolated to prevent ground loops and hum.

Call Signal Option: Detects call signals from any of the compatible 2-wire intercom systems, and then provides a +5 VDC

output to the 4-wire intercom system. Accepts a contact closure input from the 4-wire system and converts it to the call signal
format required by the 2-wire system. The DSI 2008 can be directly connected to an ADAM, ADAM CS, or Zeus GPI
(General Purpose Interface). GPI inputs can be programmed to activate call signals and audio paths to any of the available
types of communication with the 4-wire system, including intercom ports, camera ISO circuits, IFB circuits, etc. GPI outputs

1

can be set up to place calls only from a specific keypanel within the 4-wire system, or from any keypanel within the 4-wire
system that wishes to call the 2-wire system.

Half-rack Wide, 1RU High: Two DSI 2008s fit into a single rackspace. Compatible with R T S TW rack mount hardware. Can
be mixed with other TW equipment.

Universal Power Pack: Ready for worldwide use. Automatically accepts any main voltage from 100-250 VAC, 50/60 Hz.
Power pack equipped with locking DIN connector for attachment to the DSI 2008.

FIGURE 1. DSI 2008 Reference View

Front and Back Panel Descriptions

Front Panel

There is a power ON/OFF and call indicator at the left of the front panel. This indicator lights continuously when the DSI 2008
is turned ON and flashes when an incoming call signal is detected, if the call signal option board is installed.. The remainder of
the front panel is divided into controls and indicators for the two separate hybrids, labeled SYSTEM A and SYSTEM B. For
each hybrid, there is a 10-segment, peak reading level meter to display the 4-wire output level (TO 4W). There is a recessed
level set control to the left of the 4-wire meter (LEVEL SET) and there is also a recessed, 5-position range select control for
the 4-wire output (4W LEVEL REF SEL). Under the 4-wire meter, is an identical meter for the 2-wire output level, and there
is a recessed level set control for the 2-wire output to the left of the meter. Under the 2-wire meter, there is a recessed, 5­position selector. The selector has two OFF positions for when no 2-wire input is connected. The three remaining switch
positions select the 2-wire system as follows: position 1 selects RTS TW channel 1; position 2 selects RTS TW channel 2 or a
Clear-Com channel; the BAL position selects an Audiocom balanced channel. There are 3 LED indicators to display the
current selection.

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Back Panel

The power pack connector is located at the right end of the back panel. This is a locking DIN connector. The remainder of the
back panel is divided into connectors for the two separate hybrids. Connectors are labeled with “J” numbers fo llowed by “A”
or “B” to indicate System A or System B. For each hybrid, there is an AUX connector. This is used to connect to/from the
optional call signal card. Below the AUX connector, there are both a DB-9F connector and an RJ-11 connector for 4-wire
intercom connection. These are directly compatible with standard ADAM/Zeus keypanel cables. Next to the 4-wire
connectors, there is a 3-pin female XLR audio connector for connection to the 2-wire intercom system.

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Specifications

2-Wire Ports

Input / Output Impedance

5,000 ohms, nominal

Operating Level

Audiocom: 1 V
RTSTW/ClearCom: 775 mV

4-Wire Ports

Input Impedance

10k ohms, nominal

Output Impedance

200 ohms

Operating Levels

-10 dBu, 0 dBu, +4 dBu, +8 dBu, +12 dBu

System to System

Frequency Response

200 Hz to 3.5 kHz, ±4 dB

THD: ≤ 1% @ channel output with nominal input

Environmental

Operating Temp

-20°C to 50°C (-4°F to 122°F)

Storage Temp

-40°C to 85°C (-40°F to 185°F)

Humidity

0 to 95%, non-condensing

Main Voltage

100 to 250 V

Dimensions

1.72” (44mm) High x 8.19” (208mm) Wide x 8.0” (204mm) deep

Weight

5.0lbs (2.3kg)

Finish

Thermoplastic front panel, aluminum case, light gray finish

Approvals

UL, CSA, UDE, CD

Specifications subject to change without notice.

AC, 50/60 Hz

RMS

, nominal

RMS, nominal

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