DISTRIBUTION AMPLIFIERS
DDA-4280:
2.048 Mbps (E1) G.703 Data Distribution Amplifier.
Data regeneration with Jitter Attenuator.
Front panel monitoring facility.
Protection switching facility.
External alarms and bypass.
Redundant pair operation capability.
Simple Network Management Protocol (SNMP) monitoring.
DDA-4301:
E3/DS3 G.703 Data Distribution Amplifier.
G.703 compliant.
For either E3 or DS3 G.703 data rates.
Adaptive cable input equalisation.
Data regeneration.
Front panel monitoring facility.
Protection switching facility.
External alarms and bypass.
Redundant pair operation capability.
Optional SNMP capability.
ZDA-4300RH:
Handshake Connection E1, E3 & DS3 Data Amplifiers.
Redundant pair operation.
Protection switching facility.
External alarms from each module.
One output bypass on power loss.
DDA-4320:
ASI / SDI / STM-1 Path Protection & Distribution Amplifier.
For use as buffer or distribution amplifier.
4 x in-phase reclocked outputs.
Protection switching capability.
Selectable for either ASI / SDI or STM-1 applications.
Automatic input equalisation to 250m.
Automatic output muting on no input.
Relay bypass on loss of power.
Front panel indicators provide monitoring of presence of input signal at
270 Mb/s (ASI/SDI) or 155 Mb/s (STM-1).
SNMP monitoring and control.
ZDA-4320RH:
Handshake Connection ASI / SDI / STM-1 Data Amplifiers.
Redundant pair protection switching operation.
External alarms from each module.
One output bypass on power loss.
NETWORK INTERFACE ADAPTERS
DAC-4440:
AES/EBU to G.703 (2 Mb/s) Network Interface Adapter.
Conversion of AES/EBU audio to 2Mb/s G.703 for transport via telecom circuits.
Bi-direction operation possible with independent transmit and receive functions on
the one card.
Choice of 75 Ohm unbalanced or 110 Ohm balanced AES/EBU line connections.
48 kHz 20 bit default sample rate, 25 55 kHz rates supported.
Optional external AES/EBU reference input for rates other than 48 kHz.
Allows Channel (C), User (U) or RS232 data to be conveyed.
MDC-3661:
2 Mb/s (E1) G.703 / ASI Network Interface Adapter. (MOQ applies)
2 Mb/s (E1) G.703 input to ASI output.
ASI input to 2 Mb/s (E1) G.703 output.
Selectable ASI program number.
AIS signal generated when no input is present.
MDT-3670:
ASI to ASI & G.703 Network Interface Adapter.
Wide range of ASI to ASI & G.703 conversions.
Reed Solomon encoding.
Interleaving.
Scrambling.
Packet length indication.
Selectable 188 to 204 byte conversion.
Packet stuffing with or without PCR restamping.
MDR-3670:
G.703 to ASI Network Interface Adapter.
Wide Range of G.703 to ASI conversions.
E3 or DS3 operation with automatic DS3 De-framing.
Reed Solomon correction.
De-interleaving.
De-scrambling.
Packet length indication.
MMM-4230 & MMX-4230:
4 ASI to G.703 (DS3) Multiplexer / De-Multiplexer.
Up to 4 ASI and 1 Data stream on one 45 Mb/s G.703 link.
Input rate stuffing to 45 Mb/s G.703 rate.
Selectable input maximum data rates.
Automatic input equalisation up to 300m.
Suitable for Single Frequency Network (SFN) use.
Optional SNMP plug-in monitoring and control module.
MMM-4682 & MMX-4682:
4 ASI to G.703 (STM-1) Combiner / DeCombiner.
Up to 4 ASI and 1 Data stream on one 155 Mb/s (STM-1) G.703 electrical or
optical link.
Automatic Input equalisation up to 200m.
Suitable for Single Frequency Network use.
Maintains original ASI rate, packet size & coding.