MDM-2X02 Link 11/Link 22 Modem Family

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Features & Benefits

  • Dual Tactical Data Link operation: Perform all Link 11 and Link 22 operation simultaneously within a single modem. No need to deployed two different equipments.
  • Link 22 operation: Implement the Link 22 Signal Processor Controller (SPC) functions.
  • Full SPC capability: Manage two L22 channels simultaneously if your platforms operate on only two channels.
  • Full Link 22 operation: Operate two MDM-2X02 units simultaneously on the four L22 channels.
  • Link 11 operation: Select station modes Net Control Station (NCS) or Participating Unit (PU) per MIL-STD-188–203–1A.
  • L11 waveforms: Select CLEW (Conventional Link Eleven Waveform) per MIL-STD-188–203–1A or SLEW (Single-tone Link Eleven Waveform) per SPAWAR-S-850 dated 10 February 1992.
  • L11 SATCOM communication: Perform L11 operation over SATCOM network in addition to HF or UHF radios.
  • Link 11 Split Site operations: No problem to support installation where the radio equipments are located at separate sites, several types of configuration can be handled.
  • Control and remote control operation:Don’t worry about control or remote control capabilities, the front panel, an RS-232 compatible control interface and Control software for Windows® 2000/NT/XP will allow you to set up your personal configuration.



Link 11

Station Modes: Net Control Station (NCS) or Participating Unit (PU)

Operating Modes: Roll call, short broadcast, long broadcast, net test, net synchronization, radio silence

SLEW Mode Doppler Frequency Shift Correction: +75 Hz, tracking at 3.5 Hz/sec on 605 Hz pilot tone

Independent Sideband Operation (diversity)

Dual Link 11 Capability: The MDM-2X02/N supports network management and data transmission over one Link 11 network using simultaneous operation

Link 22

Provides all Link 22 Signal Processor Controller (SPC) capabilities in accordance with current NILE consortium standards:

- HF Fix Frequency NG210 - C006 - HFFFSS/B3 (based on STANAG 4539 Annex D)

- HF EPM TSD for NILE in EPM Mode (based on STANAG 4444)

- UHF Fix Frequency NG-210 - C006 - UHFFFSS/B3 (based on STANAG 4205)

- UHF EPM NG-210 - C006 - UHFEPMSS/B3 (based on STANAG 4372)

Physical Specs

MDM-2002N 19in Standard Rack Modem

Weight: 13 lb (5.9 kg)

Size/Dimensions: 19” 2U standard rack; 3.5 in H x 18 in W x 10.8 in D; 89 mm H x 483 mm W x 275 mm D

Power Supply: 90 - 264 VAC ; 47 - 440 Hz

Power Consumption: 30 W max

MDM-2202N Airborne Modem

Weight 9 lb ( 4.5 kg)

Size/Dimensions: 1/4 ATR Short Chassis; 5.8 in H x 2.3 in W x 13.15 in D; 198 mm H x 58 mm W x 334 mm D

Power Supply: 28 VDC per MIL-STD-704D

Power Consumption: 30 W max

MDM-2402N VME Type Card Set Modem

Weight: 3.5 lb (1.6 kg)

Size/Dimensions: 6U, 2 slots VME module

Power Supply: via VME bus (+/- 5VDC, +/- 12VDC)

Power Consumption: 30 W max


Reliability (mtbf):

- Ground Fixed - 15,000 h, at 30°C per MIL-HDBK-217E

- Airborne Inhabited Cargo - 12,000 h, at 25°C per MIL-HDBK-217E

- Airborne Rotary Wing - 5,000 h, at 40°C per MIL-HDBK-217E


Tactical Data System Computer Interface:
NTDS (parallel)  
Mil-Std-188-203-1A Appendix D1 (MDM-2002)
ATDS (serial) 
Mil-Std- 188-203-1A Appendix D2
LLC/SNC/TDS Computer Interface:
2 x RS-422 interfaces
Audio interface 
2 x dual 0 dBm, 600 ohm transformer coupled transmit and receive interfaces
SATCOM interface 
RS-232, synchronous, 2400 bit/sec
Keyline 3 x outputs: 
  6 VDC on transmit audio open collector output 6 volt logic output  
Split site interface 2 x RS-232 ports, asynchronous, 4800 or 9600 bit/sec 
Data UHF 2 x WB audio interfaces 
TOD source TTL (Have quick)  
Radio control 2 x RS-422 interfaces 
Control interface RS-232 compatible (asynchronous), or 1553B Bus interface (MDM-2202) 
Software download  RS-232 interface 

Typical System

Main Components

Please contact Rockwell Collins for additional information on this product.

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