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General Instrument

General Instrument TD-3100 Magnitude Professional Terrestrial Decoder 1U

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SKU:
39774
MPN:
TD-3100
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
10.00 LBS
Shipping:
Calculated at Checkout
  • General Instrument TD-3100 Magnitude Professional Terrestrial Decoder — front panel full view showing LCD display, keypad, and GI logo, 1U rackmount chassis
  • General Instrument TD-3100 Magnitude front panel close-up showing MAIN, PREV, F1-F4 function keys, LCD display, and 'Professional Terrestrial Decoder' label
  • General Instrument TD-3100 front panel right-side detail showing numeric keypad, C key, ENTER button, Power/Signal/Alarm LED indicators, and GI logo
  • General Instrument TD-3100 rear panel full view showing AC inlet, on/off switch, S-Video port, Composite BNC, Audio 1 and 2 terminal strips, Network connector, and RS-232 port
  • General Instrument TD-3100 rear panel close-up showing AC input label (90-264VAC, 47-63Hz), S-Video mini-DIN, Composite BNC, and Audio 2 balanced terminal strip
  • General Instrument TD-3100 rear panel close-up showing Audio 1 balanced terminal strip, proprietary Network multi-pin connector, RS-232 DB9 port, and 'Manufactured in USA by General Instrument' label
$75.00
Was: $150.00
Current Stock: 2

Sold Out

Description

General Instrument TD-3100 Magnitude Professional Terrestrial Decoder 1U

The TD-3100 is a 1U rackmount terrestrial decoder designed for professional broadcast and telecom environments. It decodes terrestrial signals and outputs video and audio for integration into broadcast chains and distribution systems.

Specifications & What's Included

  • Model: TD-3100 Magnitude Series
  • Form Factor: 1U Rackmount
  • Power: 90-264VAC, 47-63Hz
  • Video Output: S-Video, Composite (BNC)
  • Audio Output: Two balanced terminal strip connections
  • Control: RS-232, Proprietary network connector
  • Front Panel: LCD display, numeric keypad, function keys, status LEDs
  • Manufactured: United States

Applications

Terrestrial decoders like the TD-3100 were used in broadcast facilities, cable headends, and telecom distribution centers to receive and process over-the-air television signals. The unit integrates into legacy broadcast infrastructure alongside multiplexers, encoders, and distribution equipment. Its dual audio and composite/S-Video outputs supported standard definition broadcast workflows common in the 1990s-2000s.

Condition: For Parts or Not Working
This General Instrument TD-3100 Magnitude Professional Terrestrial Decoder is being sold as-is for parts or repair. The unit powers on and the front LCD display shows dots and dashes, but it is not in verified working order and is not guaranteed functional. It is not fully operational and is sold strictly in its current condition. The chassis and front panel show typical rack-service wear. The rear panel connectors — S-Video, Composite BNC, audio terminal strips, RS-232, and Network port — are all present and appear intact. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
General Instrument
Model:
TD-3100
MPN:
TD-3100
Type:
Professional Terrestrial Decoder
Series:
Magnitude
SKU:
39774
Form Factor:
1U Rackmount
Power Requirements:
90-264VAC, 47-63Hz
Video Output:
S-Video, Composite (BNC)
Audio Output:
Audio 1 (balanced terminal strip), Audio 2 (balanced terminal strip)
Interface / Control:
RS-232, Network (proprietary multi-pin connector)
Front Panel:
LCD display, numeric keypad, MAIN/PREV/F1-F4 keys, ENTER key
Indicators:
Power (green LED), Signal (amber LED), Alarm (red LED)
Country/Region of Manufacture:
United States
Condition:
As-Is / For Parts or Not Working
Seller Notes:
Unit powers on; display shows dots and dashes. Sold as-is for parts or repair.
Condition Notes:
General Instrument TD-3100 Magnitude Terrestrial Decoder sold as-is for parts or repair. Powers on; LCD shows dots and dashes only. Not verified functional. No returns except not-as-described.
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Power Requirements:
AC 100-240V, 60-50 Hz, 0.5-0.3 A
Fuse Rating:
1A, 250VAC
Interface Type:
HSSI I/O, DVB Modem, EXT Sync, Alarm Cable
Number of Ports:
8 rear ports: A/B MUX IN, Modem OUT 1/3/4/5, DVB Modem OUT/IN
Connector Types:
DB-15, DB-25, BNC (EXT sync), IEC AC inlet
Front Panel Indicators:
MUX, DVB, SS, CLK, PLL, FRM, OLL LEDs
DIP Switch Control:
Internal mode, frequency, packet length, loopback selectors
Compatible With:
General Instrument Magnitude headend systems
Manufacturer:
Magnitude Compression Systems, Inc.
Country/Region of Manufacture:
United States
Seller Notes:
Unit only; no accessories included. Inspected and in good condition.
Condition Notes:
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SKU:
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Weight:
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Brand:
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MPN:
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Form Factor:
1U Rackmount
Power Requirements:
120/230VAC, 60Hz, 1.5/0.75A
Country/Region of Manufacture:
United States
Application Bus Ports:
4x Application Bus (DB25) — Application Bus 1–4
Rear Connectors:
System Sup In/Out, CAE In, Modem Out, Test, Monitor Out, Black Burst In, Alarm Relay
Front Panel Indicators:
Power On, Online, Backup, Reset, Abort, Alarm LEDs
Front Panel Controls:
Address switch, Group ID switch
Signal Standard:
MPEG-2
Application:
Broadcast / Cable TV Headend MPEG Stream Multiplexing
Certifications:
UL Listed 95AT, CE, GS (TÜV Rheinland), EMV
FCC Compliance:
FCC Part 15, Class A
Condition:
Used – Pulled from Working Environment
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Unit only; no additional accessories included.
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SKU:
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Availability:
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Weight:
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19" 1U Rackmount
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Country/Region of Manufacture:
United States
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Condition:
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39498
Availability:
Usually ships within 1-2 business days.
Weight:
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MPN:
410111-01
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Condition:
Used – Inspected and Appears in Good Condition
Series:
Magnitude Compression Systems
Manufacturer Division:
CLI (Cable Television Laboratories Inc. / GI)
Assembly Number:
410111-01
Serial Number (Unit):
2274
Manufacture Date:
September 1997
Power Requirements:
AC 100/240V, 12-6 Amps, 50-60 Hz
Wiring Configuration:
Wired for 120VAC only (per label warning)
Certifications:
UL Listed (95AT)
Country/Region of Manufacture:
United States
Form Factor:
Rackmount Chassis (large multi-slot card cage)
Video Standard:
NTSC / PAL / Composite / Serial D1
Signal Indicators:
Analog, PAL, Normal, Composite, Serial D1, Line Lock, Field Lock, Field Filter Alarm
Status Indicators:
Power On, On-Line, Backup, Transmit
Encoder Card:
CLI Video Encoder M1, P/N 410444-01, Rev A
Channel Configuration:
Multi-channel; Chan 2 visible with Abort/Reset controls
Front Panel Connectors:
Dual DB25 (Monitor), DB9 (Test) on Chan 2 module
Rear Connectors:
BNC video outputs, DB connectors, power harness
Power Supply:
Internal power supply unit with multi-rail outputs (+V, +15V, -15V, -5.2V visible)
Compliance:
DVB (Digital Video Broadcasting) compliant (per label)
Application:
Broadcast headend, cable TV, satellite video encoding
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