No Longer Available - For Reference Purposes Only
           

DDA-4009:   Dual 1 In, 4 Out (Single 1 In, 8 Out) 3G/HD/SD/ASI/STM-1
                        Reclocking/Non-Reclocking Distribution Amplifier.

FEATURES:

      4 in-phase reclocked / non-reclocked outputs on each amplifier.
      Switch selectable for 1 in, 8 out single distribution amplifier operation.
      Selectable for either 3G/HD/SD-SDI, ASI or STM-1 applications.
      Automatic output muting on no input.
      Optional relay bypass on loss of power.
      Front panel indicators provide monitoring of presence of inputs and lock status.
      SNMP monitoring and control.

Brochure  

User Manual  

GENERAL:

The DDA-4009 serial digital data distribution amplifier provides the user with a single module to cover a wide range of distribution and monitoring functions for 3G/HD/ SD-SDI, ASI or STM-1 signals.

Two quad output reclocking / non-reclocking distribution amplifiers are provided on the one card. On board switch settings allow either of the inputs to feed all outputs to create a one in, eight out distribution amplifier.

Where non-reclocking is required, on-board switch settings select between reclocking and non-reclocking modes.

The DDA-4009 will automatically reclock to match the input at either 3G-SDI, HD-SDI, SD-SDI, ASI or STM-1 rates, or can be fixed to operate at any one of these rates. Both sides of the DDA-4009 can be run independently allowing a mixture of signal types to be used.

Front panel LEDs indicate when input signals are present and whether the outputs are locked to the inputs.

An optional relay bypass rear assembly is available to switch one of the Inputs (I/P 2) to one of the Outputs in the event of a power failure.

Simple Network Management Protocol (SNMP) is available for remote setup and monitoring of input status and alarm states when used in an IRT frame fitted with SNMP capability.

The DDA-4009 is designed to fit IRT's 4000 series 3RU frame for use with IRT's SNMP system as well as being suitable with IRT's 1000 series 1RU Eurocard frames and may be used alongside any other of IRT's Eurocards.


TECHNICAL SPECIFICATIONS:

Data Inputs:
Number
2.
Impedance
75 Ω, BNC.
Type
2.97Gb/s 3G-SDI, 1.485Gb/s HD-SDI, 270Mb/s SD-SDI/ASI, or 155Mb/s STM 1 (CMI or NRZ encoded).
Return loss
 15dB 5 MHz to 1.485 GHz,
10dB from 1.485 GHz to 2.97 GHz.
Equalisation     Automatic
100 m at 2.97 Gb/s with Belden 1694A1,
100 m at 1.485 Gb/s with Belden 82811,
300 m at 270 Mb/s with Belden 82812.
                       NOTE:   1
Reduces to 50m with optional bypass relay.
                                    2
Reduces to 160m when SW1-4 (I/P 1), SW2-4 (I/P 2) is ON.

Data Outputs:
Number
8 (1 in, 8 out; or (2x) 2 in, 4 out).
Type
Reclocked or non-reclocked, switch selectable.
Level
800 mV ± 10% (3G/HD/SD-SDI / ASI / STM 1 NRZ encoded);
1.0 V. ± 10% into 75 Ω (STM-1 CMI encoded).
Impedance
75 Ω, BNC.
Return loss
15dB 5 MHz to 1.485 GHz,
10dB from 1.485 GHz to 2.97 GHz.

Performance:
Reclocking
Automatic or selectable for 2.97Gb/s 3G-SDI, 1.485Gb/s HD-SDI, 270 Mb/s SD-SDI / ASI, or 155 Mb/s STM-1 operation.
Rise time         3G/HD
~ 100ps;
                       SD
~ 600ps.
Intrinsic jitter
< 0.1 UI (measured with up to 300m of Belden 8281 or equivalent cable - reclocked mode).

Indicators:
DC
LED (green) for module power.
CH1 PRES
LED (green) when signal present on channel 1 input.
CH1 LOCK
LED (green) when channel 1's outputs locked to incoming signal.
CH2 PRES
LED (green) when signal present on channel 2 input.
CH2 LOCK
LED (green) when channel 2's outputs locked to incoming signal.

Power Requirements:
Voltage
28 Vac CT (14-0-14) or ±16 Vdc.
Power consumption
6VA.

Other:
Temperature range
0 - 50°C ambient.
Mechanical
Suitable for mounting in IRT 19" rack chassis with input, output and power connections on the rear panel.
Finish:             Front panel
Grey background, black lettering & red IRT logo.
                       Rear Panel
Detachable silk-screened PCB with direct mount connectors to Eurocard and external signals.
Dimensions
6 HP x 3 U x 220 mm IRT Eurocard.
Standard
Rear connector assembly with matching connector for alarm output.
Optional
ZDA-4009RL relay bypass rear assembly.



                                    

ZDA-4009
ZDA-4009RL
Standard
Optional
Rear Assembly
Relay Bypass
Rear Assembly


Due to our policy of continuing development, these specifications are subject to change without notice.