Adtec DUET User manual

KEYPAD

DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

3/22/00 V4.0-1

ADTEC, Inc. USA

INTRODUCTION

ADTEC’s DUET MPEG 2 Commercial Inserter represents over six years of experience and a culmination of two prior

generations of MPEG 2 decoding and commercial insertion technology. The DUET incorporates all the required cue

tone detection; scheduling, verification, audio and video switching and other associated requirements to perform

broadcast quality MPEG 2 commercial insertion. ADTEC is pleased to offer the DUET to the commercial insertion

market and is confident that it will provide years of maintenance free broadcast quality MPEG 2 commercial

insertion.

Duet (Front View)

A B C D E F G H

Identifier Description

A Recessed Reset switch. Must be held for one second to initiate reset.

B Power LED, illuminates when AC power is applied to unit.

C Video LED, illuminates during video playback.

D Drive LED, illuminates during either SCSI or IDE host controller activity.

E Link LED, illuminates when the electrical 10 Base T Ethernet connections are

made correctly to a hub or server.

F Busy LED illuminates when Ethernet activity occurs.

G Drive bay

H DUET Insertion Module

Duet (Rear View)

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DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

3/22/00 V4.0-2

ADTEC, Inc. USA

Typical MPEG 2 cable digital commercial insertion diagram

KEY PAD

The DUET provides for simple, intuitive configuration and status through the front panel Key Pad and LCD display. A

PC running ADTEC’s Symphony in Windows 95, 98 or NT4.0 is required for detailed configuration and scheduling.

DUET KEY PAD and LCD

MPEG 2

Full D1

Encoding

Station

Optional

Jaz drive

Optional Jaz drive

Archive or Remote

Distribution

MPEG 2 Analog Switching

Commercial Insertion System

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DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

3/22/00 V4.0-3

ADTEC, Inc. USA

Summary Table of Keys

Key Use

MODE To sequence through the menus.

ENTER To accept changes or new data.

ESCAPE To exit a menu with out accepting data or return to the

main menu

SELECT To edit data.

UP To scroll through a menu or change data after the select

key has been pressed. (Increases LCD brightness)

RIGHT To move right in a menu to select a field for editing.

LEFT To move left in a menu to select a field for editing.

DOWN To scroll through a menu or change data after the select

key has been pressed. (Decreases LCD brightness)

HOW TO USE THE KEYPAD

1) Press the MODE key to scroll through the menus.

2) Press the LEFT or RIGHT arrow key to display the different sections of the currently displayed menu.

3) Press the UP or DOWN arrow key to display the setting options of the currently displayed section.

4) If you want to change a currently selected menu:

A) Press the SELECT key to activate the editing mode (this will display a flashing cursor).

B) Use the LEFT and RIGHT arrow keys to highlight the setting you want to change.

C) Use the UP and DOWN keys to change the value of the setting.

D) Press the ENTER key to save the setting to the new value.

5) Press the ESC key to return to the main menu.

MENUS

The DUET menus are as follows: Main, End Insert, NetSets, Source, Audio Level,

Log Settings, Date & Time, Serial Port, UNIT Name, Network

Name, Network Channel, CBD Network, Host Mode, EMT Setting,

DUP Drive.

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DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

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ADTEC, Inc. USA

MENU TREE

Test Break Press Enter To Add

NET Settings

End Insert, Press Enter

Trigger Net1 Press Enter

Inserts

Log Settings (Yes or No)

Misses

Launches

Routes

Endings

Soloist

Resets

Main Menu (Duet Status)

Audio (Current audio setting for Network, Insert level set in Conductor)

-16 through +14 dB in 2 dB increments

Source (Test utility for Video Audio Multiplexer for Network)

Network (NET), Soloist (SOL), Auxiliary (AUX), Off Air (OFF)

Mode

Days On

Time On

Time Off

Start Tones

Start GPI

Stop Tones

Stop GPI

Preroll

Post Roll

Avail

Check Video

End By

Net Audio

Com Audio

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ADTEC, Inc. USA

Initialize Modem (Manually Enter Modem string)

Network Settings Preset

MENU FUNCTIONS

MAIN MENU

The main menu is a non-editable display. It displays the Date and Time. During an insert the

Spot ID along with the network and a spot running time code with percentage complete will

be displayed.

Date and Time

PC Serial Port Settings (Baud, Data, Stop, Parity)

Modem Presets (Modem strings)

Unit Name (Twenty Digit Alphanumeric Unit ID used for communications)

Network Channel (Three Digit numeric Cable System or T&B Channel Number)

See the Network Listing for pre-configured networks.

Date- mm/dd/yyyy, Weekday, hh:mm:ss, Daylight Savings (DS in field is on

and a blank field equals NO DS)

CBD Network (Pre configured Network listing)

User Defined, (Analog or Digital, Frequency of Sub Carrier 0.000 to 9.525 MHz,

Modulation type Wide (W) or Narrow (N) band)

Network Name (Four Digit Alphanumeric Network ID)

Host Mode (Ethernet host mode)

IP Address (Unit IP Address)

IP Mask (Unit IP Mask)

Gateway IP Address (Unit Gateway IP Address(s))

EMT Setting (Ethernet Multicast Transfer)

Duplicate Drive (Automatic copy source drive ID)

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ADTEC, Inc. USA

Main Menu Messages

Message Description

xxxxxxxx PreRoll

xxxxxxxxx Pre Rolling (x represents Spot ID)

xxxxxxxx ON yyyy

hh:mm:ss.ff pp%

xxxxxxxx ON yyyy (x represents Spot ID and y represents the Network

Name). Displayed on the top row during an insert.

Spot running time code in hours, minutes, second and frames and

percentage of playback completed. Displayed on the bottom row

during an insert.

Main Menu KEY Functions

Key Display

UP Increases LCD brightness

DOWN Decreases LCD brightness

Hold SELECT and UP

Firmware version and Date Code

RIGHT

Reserved

Left

(Indicates the last eight DTMF tones and

GPI state for the Network, Auxiliary,

CBD and White Line). The tones

displayed in the top row are for either

external audio connections or Analog

CBD tones. The bottom row displays the

digital subcarrier decoded tones only.

Top Row: tttttttt N-H A-H (t represents the last eight tones) N

is the Network GPI state and A is the Auxiliary GPI state.

GPI options are H for High and L for low.

Bottom Row: tttttttt C-H W-H (t represents the last eight

tones) C is the CBD GPI state and W is the White Line GPI

state. GPI options are H for High and L for low. The CBD GPI

is for 19 kHz tones used by MTV and VH1.

Hold RIGHT, ESCAPE and MODE keys

simultaneously to reset the unit.

(Pressing the reset button on the front panel also

resets the Soloist 2)

This key function provides a soft reset of the Soloist 2 and

DUET.

!!!!!!!!!!!! RESET SEQUENCE !!!!!!!!!

END Insert

Press enter to end the current insert. This will end an insert regardless of how it was started. Be careful,

there is no double prompt for this option as it was designed to perform immediate insert termination.

Launch Insert

Launches an insert as if a tone or GPI match occurred. If a Network Setting and Break Setting is

available, an insert will occur based on those parameters.

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DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

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ADTEC, Inc. USA

Test Break

Adds an Inventory Break in the last position (Break 500) of the Break Settings (Schedule). This

sets up a Run Of Schedule (Inventory) scheduled event to allow the DUET to either be tested or run

the drives inventory. NOTE: You must have a Net Setting.

End Insert

Cancels an insert as if a tone or GPI match occurred.

NET Settings

The DUET allows the user to define Network criteria specific to a Commercial Insertion. The following is a

list of options with definitions for each setting.

Mode- Insert Mode.

Options: InsertNet1, Broadcast, AuxiliaryNet1, Inactive

Days On- Specific week days authorized for insertion.

Options: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday

Time On- Open window time. 24-hour format

Time Off- Close window time. 24-hour format.

Start Tones- DTMF tone cue sequence.

Options: 1, 2, 3 or 4 digit DTMF tone sequence.

Start GPI- GPI cue setting.

Options: None, NetClosed, NetOpen, NDeviceClosed, NDeviceOpen, Time

(White Line Cue responds to any Closed or Open setting)

Stop Tones- DTMF tone to stop a commercial insertion.

Options: 1, 2, 3 or 4 digit DTMF tone sequence

Stop GPI- GPI setting to start a commercial insertion.

Options: None, NetClosed, NetOpen, NDeviceClosed, NDeviceOpen, Time

Pre Roll- Delay in seconds and frames after cue detection prior to switch “On”.

Post Roll- Delay in seconds and frames after cue detection prior to switch “Off”.

Avail- Total maximum length of the Avail time in hour’s minutes and seconds.

Check Video- Monitors spot video quality during insert. If poor quality, breaks are

terminated.

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ADTEC, Inc. USA

End By- Return from break criteria.

Options: Net/Avail/Spot, Net/Avail, Net/Spot, Spot/Avail, Network, Avail, Spot

NetAudio- Commercial and Network Audio levels.

Options: -16dB to +14 dB in 2 dB increments

ComAudio- Commercial and Network Audio levels.

Options: -16dB to +14 dB in 2 dB increments

Source

The DUET’s built in 4 by 1 A/V router can be manually changed with the Source menu.

NET- Network video and audio routed

SOL- Soloist MPEG 2 video and audio routed

AUX- Auxiliary video and audio routed

OFF- No video and audio routed, off air.

Audio

The DUET provides attenuation or gain capabilities for the Network, Soloist (MPEG 2 insertion material) and

Auxiliary sources. Settings: -16dB to +14 dB in 2 dB increments. This setting is momentary and will revert

to the current NetSet once a break starts.

For Balanced 600 Ohm systems

A) The Network setting is factory defaulted to –6dB. The – 6dB setting provides active termination

equal to 600-Ohms. This provides a balanced input during power on for the receiver. The internal

gain circuit provides a multiplier of 2. This limits the maximum input voltage to 1 V peak to peak. In

the event of a power loss to the DUET the active –6 dB termination is disabled and the receiver will

see the 600-Ohm load on the modulator. This eliminates the possibility of dual termination.

B) The use of a 600-Ohm resistor on the audio input provides passive termination and will require that

the Network audio be set to +0 dB in the network setting. In this scenario, when power is lost, the

network audio will become doubly terminated (once at the Duet input and again at the modulator).

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ADTEC, Inc. USA

C) If the 600-Ohm termination can be disabled on the modulator, the use of a passive 600-Ohm resistor

on the Duet input will provide proper termination in both power on and off states.

It is recommended to integrate the audio using A or C. If the audio still sounds distorted in either of these

scenarios, the input level to the DUET must be lowered to 1 V P-P.

For Un-Balanced Hi-Z systems

A) Typically Hi-z audio has input impedance of 10K-Ohms or higher. There is no need for passive

termination in the form of a resistor or active termination in the form of a –6 dB network setting.

Connect the positive and ground wires only to the input and output of the DUET.

Log Settings

The DUET provides sophisticated logging capabilities. The following is a list of options with definitions for

each setting.

Inserts- Logs the commercial ID

Misses- Logs missed commercials and the reason why the commercial was missed.

No Break- No Break window was open when the cue was received.

No Spots- Spots were not available to insert.

Launches- Logs the cue tone, GPI or user input that launched the insert.

Routes- Logs the switch to and from the insert and network or auxiliary.

Endings- Logs the way the insert was terminated.

Soloist- Logs the commands sent internally between the DUET and Soloist 2.

Resets- Logs the resets.

DATE & TIME

The DUET keeps accurate time once it has been set. A lithium battery maintains accurate time and date

information during power failures. The battery can provide for many years of accurate time backup. The

DUET has the ability to adjust for Daylight Savings if the option is set to YES.

Date- MM/DD/YYYY

WD HH:MM:SS DS

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DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

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ADTEC, Inc. USA

This is the Date and Time format where, MM= Month, DD= Date, YY= Year, WD= Weekday,

HH= Hours MM= Minutes, SS= Seconds (24 hour clock), DS= Daylight Savings= Y, N.

SERIAL PORT

The DUET has one serial port setting that must be properly configured in order to communicate with a

communications port or modem. If a modem is used press the up key to edit the modem initialization string.

The PC (personal computer) serial port communicates with a computer or modem and is used

for data communications including scheduling and verification logs. It consists of a pair of RJ-

11 / RS-232 plugs located on the rear panel of the DUET labeled THRU/COMM IN. The right

port (facing the rear) is the “IN” plug and has an arrow pointing up. The left port (facing the rear)

is the “THRU” plug and has an arrow pointing down. The “IN” plug connects to a computer or

modem.

The “THRU” plug is provided so that multiple (unlimited) DUET’s can daisy chain off a single

host computer or modem. When multiple DUET units are daisy chained together, the “THRU”

connection of the upstream unit connects to the “IN” connection of the downstream unit. No

termination is required on the last DUET in the chain.

The PC (COMM IN) on the DUET and the host PC (personal computer) must have matching

BAUD, DATA BITS, STOP BITS and PARITY settings to ensure proper communications.

The format of the serial port settings is BBBBB,D,S,P where:

BBBBB = Baud: Data transfer rate between DUET and host computer.

300 – 1,036,800 baud (bits per second)

D = Data Bits: Number of data bits. 5 – 8

S = Stop Bits: Number of stop bits. 1 – 2

P = Parity: A standardized procedure for verifying proper data formats during serial

communications. N = No parity, O = ODD parity, E = Even parity.

Note: When the select key is pressed to edit the PC serial port, the cursor defaults to the baud field. To

edit other fields use the left or right key to enter the field.

Note: If more than one DUET is connected to a PC or modem (via a daisy chain connection), all the Duet’s

must have identical PC SERIAL PORT settings. When communicating with DUET's use of

38,400, 8, 1, N is recommended.

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DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

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ADTEC, Inc. USA

MODEM Presets

The Duet has several modems that we recommend for use. These modems have their initialization strings

pre-loaded. If you are using any of the modems listed below, select the model modem from the list. The

initialization string will be automatically set and sent to the modem. If you are not using one of these

modems then continue to the Modem Initialization menu and program the Initialization string of your modem

into the Duet.

MODEM Presets table

Manufacturer Model Number Initialization String

Generic Generic ATE0V0&K4S0=1

Best Data Smart One 336FLX (36.6 Kbs) ATE0V0&K4&D0&R1&S0%C3S0=1

Best Data Smart One 56SXV.90 (57.6 Kbs) ATE0V0&K4&D0&R1&S0%C3S0=1

C-Net (Rockwell) 5614XE (57.6 Kbs) ATE0V0&K4&D0&S0%C1S0=1

Hi-Val V1456VQE (57.6 Kbs) ATE0V0&K4&D0&S0%C3S0=1

Practical

Peripherals

PM144T (14.4 Kbs) ATE0V0&K4S0=1

Practical

Peripherals

PM336T (36.6 Kbs) ATE0V0&K4S0=1

USR Sportster 56K Sportster (57.6 Kbs) ATE0V0&H2&D0&R1&S0&K2&M4SO=1

User Defined None User entered string.

The 0’s in the initialization strings are zero’s!

INITIALIZE MODEM

The modem initialization is an alphanumeric string up to forty characters long that configures an external

modem connected to a DUET. Modem initialization strings are a constant source of anguish for computer

users everywhere. There are thousands of different models of modems with various baud, compression, and

error correction capabilities. It seems each one requires a different initialization string to function optimally.

This being the case, providence dictates using a modem for which the initialization string is already known.

The easiest way to do this is to purchase a modem from Adtec.

To enter the initialization string, press the mode key until the Serial Port screen appears then press UP.

Enter the characters by pressing Select and the up or down key then us the right or left key to move to the

next field. Press enter once the characters are entered.

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ADTEC, Inc. USA

Note: If multiple DUET's are daisy chained together, they must all have identical Serial Port settings.

Only one DUET in the chain (preferably the one connected to the modem) should have a modem

initialization string.

NEVER ENTER THE MODEM INITIALIZATION

STRING INTO MORE THAN ONE DUET.

UNIT NAME

The name is a unique identifier (20 character alphanumeric ID) for each DUET. When multiple DUETS’ are

daisy chained together, a unique unit name must be set for each unit so each unit in the chain can be

uniquely addressed for communication. An example of a DUET Name might be CNN. The factory default

name for each DUET unit is “DUET”. If the default name is not changed and multiple DUET units are daisy

chained together to a computer or modem, there will be no way to individually communicate with a specific

unit in the chain. Each DUET must have a unique unit name!

NETWORK NAME

The network name helps the user identify the broadcast network connected to the DUET’s network input. It

is a four character alphanumeric field that can also be used for billing purposes. Examples are CNN, ESPN,

FAMY etc. The field is automatically left justified for names less than 4 characters. Typically the Network

Name and DUET Name are the same.

NETWORK CHANNEL

The network channel number is associated with the DUET’s network channel input. It can represent either

the cable system broadcast channel number or billing system channel number. Examples would be 12, 32,

105, etc. The field is automatically right justified for three digit channel numbers.

CBD NETWORK

The DUET integrates built-in cue tone demodulators for both Analog and Digital subcarrier types. Select the

network from a list and the internal CBD will be configured to extract the cue tones for that specific

network’s composite baseband signal. If the required network is not in our list select USER DEFINED and

press the UP key then SELECT to configure the following parameters to match the requirements of the

network.

Modulation Type- Analog or Digital.

Frequency- Subacarrier frequency the cue tones are carried on, 0-9.525 MHz

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Bandwidth- Narrow (N) or Wide (W) band.

Note: If the cue tones are audible or connected to the rear of the DUET via the DTMF input, set

the CBD to “DISABLED”. This prevents the possibility of the internal demodulator picking up noise

and possibly miss-cueing the system.

Once the CBD Network is selected the unit can automatically set the network setting for you by pressing

the UP key then SELECT and ENTER.

The following Keystrokes configure the Net Setting to respond to the selected CBD

Network

1. Press the Mode Key until the CBD Network menu is present.

2. Select the Network and press enter.

3. Once the network is selected, press the UP Key.

4. The LCD should read “*NetSets PreSet* SEL/ENTER to SET

5. Press SELECT then ENTER.

6. The DUET will automatically configure the Net Setting for the selected

CBD network.

HOST MODE

The DUET integrates industry standard 10 Base Ethernet utilizing the TCP/IP protocol. The HOST MODE

defines whether the DUET will function as a server or client in the networked environment. Typically all

DUET’s are configured as Server’s since ADTEC’s Server Host Mode can also be a client. The DUET also

supports Mirroring via Server or Client for automatic FTP retrievals of data.

DUET SERVER- Server Host mode. (Servers can also act as Clients)

DUET CLIENT- Client Host mode.

IP ADDRESS- Unique address required for TCP/IP. Ex. 192.168.10.51

IP MASK-

All units on a given network must have identical IP Mask settings.

Ex. 255.255.255.0

GATE IP ADDRESS- IP address of Gateway if used. Ex. 192.168.255.10

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ADTEC, Inc. USA

EMT Level

The Ethernet Multicast Transfer (EMT) is a proprietary protocol designed by ADTEC for high-speed

distribution of files. EMT resides at the physical layer of the Ethernet Protocol and operates by multicasting

files from a designated solicitor to all subscribers on the network. The solicitor will accomplish this by using

one of two modes. In half duplex mode the solicitor will continuously multicast all files in its directory

without requiring acknowledgments from subscribers. In full duplex mode the solicitor will broadcast a

solicitation every three seconds to see if any subscriber needs the file. If the solicitor receives any

subscriptions it will then begin multicasting the file. The subscribers will then be required to send periodic

acknowledgements until the file is finished multicasting.

******************WARNING******************

In order to distribute files in the least amount

of time EMT has been highly optimized and will

use in excess of 90% of the available

bandwidth on a 10baseT network. If your

ADTEC equipment is connected to the rest of

your LAN or a WAN it is highly recommended

that a router/bridge be used to either block all

broadcast or EMT transmissions only. EMT

uses a proprietary packet type of ADEC (hex).

Please see your network administrator for

more details on how to set up a router/bridge.

In the absence of a router/bridge the amount of

bandwidth used by EMT can be constrained by

lowering the Upper Bit Rate of the EMT Setting

at the expense of slower file distribution.

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ADTEC, Inc. USA

Half Duplex Mode

The solicitor is set to Half Duplex Mode by placing a 0 in the Renewal digit of the EMT Setting. When

operating in half duplex mode the solicitor will continuously multicast every file in its directory. There will be

a three second pause between each file transmission. The rate at which the files are transmitted is

determined by the value in the Upper Bit Rate digit of the EMT Setting. This value represents the

transmission rate in Mbps with 0 = 10 Mbps.

Full Duplex Mode

The solicitor is set to Full Duplex Mode by placing a non zero value in the Renewal digit of the EMT Setting.

When operating in full duplex mode the solicitor will broadcast a solicitation packet every three seconds.

The solicitation packet will include the filename to be transmitted, file attributes, and the data rate at which it

will be sent. When a subscriber receives a solicitation packet it will perform an exactness test to determine

if it needs the file. The exactness test consists of checking the name, extension, date and time, and size

against every file in the subscriber’s directory. If a complete match is found the subscriber will ignore the

solicitation. If a complete match is not found the subscriber will send a subscription packet to the solicitor.

If the solicitor receives any subscription packets it will start multicasting the file at the rate designated by

the Upper Bit Rate digit of the EMT Setting. Approximately once a second each subscriber will send a

renewal packet. If the solicitor does not receive any renewals it will stop the multicast. Once the multicast

is complete, it will decrease the data rate in Mbps according to the value in the Step digit of the EMT

Setting and re-solicit the file. It will continue this process until it either receives no subscriptions or the data

rate falls below the Lower Bit Rate of the EMT Setting. At this point the solicitor will move on to the next file

to be solicited.

In order to ensure timely distribution of new files the solicitor uses an interleaving priority technique. All new

files created or moved into the solicitor will have the archive bit set. The archive bit is then used to divide the

solicitors’ directory into two groups. The first group is considered high priority and contains all files that

have their archive bit set. The second group is for maintenance and contains all files in the directory. The

solicitor will then interleave its solicitations by continually soliciting a file from the high priority group and

then soliciting a file from the maintenance group. When a high priority solicitation receives no subscriptions

it is considered distributed and is removed from the high priority group by clearing the archive bit.

There are two optional settings for EMT. The first option is Grouping which applies to both Half Duplex and

Full Duplex modes. The second option is Resends and applies to Full Duplex Mode only.

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Grouping allows the units to be divided into multiple groups using the Group digit of the EMT Setting. For a

solicitor to communicate with a subscriber they must both have the same group number or one must have a

group number of zero.

Resends allows a subscriber to send a packet to the solicitor requesting the resend of a missed packet.

The subscriber may request as many resends per file as designated by the Resends digit of the EMT

Setting x 10. Once the resend limit has been reached the subscriber will stop receiving the solicited file.

EMT Setting

The EMT Setting is a five-digit number consisting of the following digits:

Function/

Priority

Upper Bit Rate

Lower Bit Rate

Step/Renewal/

Resend

Group

Function/Priority 0 = Subscriber.

1-9 = Solicitor or Subscriber.

1-9 = Priority.

Note: The Priority feature is not currently implemented, so only use the value ‘1’ for a

Solicitor.

Upper Bit Rate 0-9 = Maximum bit rate of transmission in Mbps with 0 = 10 Mbps.

Note: Lowering the Upper Bit Rate will decrease the amount of network bandwidth being

used by EMT.

Lower Bit Rate 0-9 = Minimum bit rate of transmission in Mbps with 0 = 10 Mbps. If

more than Upper Bit Rate, Upper Bit Rate value will be used.

Step/Renewal/Resend

Solicitor 0 = Half Duplex Mode (No subscriptions, renewals or resends

required).

1-9 = Full Duplex Mode (Step Size = Value, subscriptions and

renewals required).

Subscriber 0 = No subscriptions, renewals, or resend requests.

1-9 = Number of resends divided by ten. Subscriptions and

renewals required.

Group 0 = Member of all groups.

1-9 = Only communicates with units that have the same group number or a

number of zero.

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EMT Examples

EMT Solicitor Configuration

Recommended setting if all subscribers have only IDE drives – 10621

Function = Solicitor.

Upper Bit Rate = 10 Mbps.

Lower Bit Rate = 6 Mbps.

Full Duplex/Step = 2.

Group = 1.

Recommended setting if any subscriber has a SCSI drive – 18421

Function = Solicitor.

Upper Bit Rate = 8 Mbps.

Lower Bit Rate = 4 Mbps.

Full Duplex/Step = 2.

Group = 1.

EMT Subscriber Configuration

Recommended Setting – 00110

Function = Solicitor.

Upper Bit Rate = 10 Mbps.

Lower Bit Rate = 1 Mbps.

Full Duplex/Step = 1.

Group = Any Group.

Duplicate Drive

Allows the user to assign a specific Hard Drive as a source drive to automatically copy files. This is useful in

situations where a JAZ drive is used to update files. The spots are copied from an encoder to a JAZ disc

and carried (Sneaker-Net) to the remote Jaz drive connected to the DUET Solicitor. Upon insertion of the

new JAZ disc the automatic copy process will copy the new file to the Solicitors Hard Drive. Automatic

overwrite is handled by the most current file date. To assign a Duplicate Drive, input the ID number of the

hard drive into the Duplicate Drive Setting.

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SCSI ID Dup Drive Table

SCSI ID Duplicate Drive Number SCSI ID Duplicate Drive Number

0 8 4 12

1 9 5 13

2 10 6 14

3 11 7

SCSI Host ID number (reserved)

Duet (Rear View)

I J K L M N O

A B C D E F G H

Connector Description

A Chassis ground.

B AC line input, 3-pin computer power plug. Includes 6’ cable. (Auto range 70-240 VAC input)

C Ethernet and External SCSI 2 or IDE drive expansion port.

D Network Audio in/out, Cue In, Tally out and Auxiliary Audio/Video in.

E RS422A. Used internally by the DUET motherboard.

***************************Warning: DO NOT CONNECT*************************

F Parallel. Used internally by the DUET motherboard.

***************************Warning: DO NOT CONNECT*************************

G RS-232 communications port THRU. (Unlimited loop-through capabilities)

H RS-232 communications port IN. (Unlimited loop-through capabilities)

I Product label area.

J 10 Base T Ethernet RJ-45 jack.

K IP address. (User area for labeling IP address of unit)

L Video output number 1, 75 Ohm. Relay bypass on this output only, connect this to the

Modulator.

M Video output number 2, 75 Ohm. No relay bypass, preview video output only.

**********Warning, DO NOT connect this output to the modulator************

N Network Video In (From IRD/IRT)

O Unbalanced LEFT and RIGHT MPEG 2 audio output, 56K Ohm output impedance.

(Preview audio typically used in conjunction with video output 2 (M)).

KEYPAD

DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

3/22/00 V4.0-19

ADTEC, Inc. USA

Exploded DUET Audio/Cue/Auxiliary/Tally IO

J K L M

A B C D E F G H I

Connector Description

A Network audio out. If monaural audio is used, make certain the output connections

match the input. IE. If the left side is used for in use the left side for out. 600-Ohm

output impedance.

B DTMF audible cue tone positive signal, low Z unbalanced. Range –20 dB to +0 dB

C DTMF audible cue tone and GPI ground.

D GPI (Contact Closure) input.

E “On Air” Normally Open contact closure. Closes during insert.

F Relay common.

G “On Air” Normally Closed contact closure. Opens during insert.

H “On Air” Open collector circuit. Ground during insert.

I Auxiliary GPI (Contact Closure) input. Connect the ground to input C.

J Network audio in. If monaural audio is used, make certain the input connections match

the output. IE. If the left side is used for in use the left side for out. Non-terminating

input. Connect an external resistor or select –6 dB in the NetSet to terminate. See

page 8 for more details.

K Composite Baseband Input from IRD/IRT. Terminates to 75 Ohms. Input range 6 to 10

MHz. This is used for cue tone extraction only! Neither audio nor video is extracted

from this signal.

L Auxiliary video in. Terminates to 75 Ohms.

M Auxiliary audio in. If monaural audio is used, make certain the input connections match

the Network output. IE. If the left side is used for in use the left side for out. Non-

terminating input. Connect an external resistor or select –6 dB in the NetSet to

terminate. See page 8 for more details.

KEYPAD

DUET VERSION 4.0 MPEG 2 DIGITAL INSERTER

3/22/00 V4.0-20

ADTEC, Inc. USA

Technical

Communications Port

The DUET supports an RS232 communications loop. The IN is provided to make a direct connection to a PC

communications port. The THRU is provided to communicate with additional devices, there is no limitation to

the number of devices that can be connected to a single PC Communications port. The default baud, data,

parity and stop parameters are: 38,400, 8, 1, N.

COMM IN and COMM THRU

RJ-11 Function Notes

1 NC No Connect

2 TRX Transmit

3 GND Ground

4 GND Ground

5 RCV Receive

6 NC No Connect

PC Communications Port Interface Adapter

DB9F to RJ-11

DB9 Female DB25 Function RJ-11 RJ-11 Function Notes

1 DCD NC NC Short to 7 inside 9 pin

housing

2 TRX 2 TRX Transmit

3 RCV 5 RCV Receive

4 DTR NC NC No Connect

5 GND 3 GND Ground

6 DSR NC NC No Connect

7 RTS NC NC Short to 1 inside 9 pin

housing

8 CTS NC NC No Connect

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Adtec DUET User manual

Adtec DUET User manual

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