Paradise P300 - Manual (Page 12)

P300H P300 Series Modem Installation and Operating Handbook Page 12
2.4 FEATURE HIGHLIGHT
This list highlights some of the notable features about the P300 Series Modems:
All P300 Series Modems (ie base modem features)
U
Variable data rate in 1 bps steps with fast acquisition even at low data rates
U BPSK, QPSK, and Offset QPSK (OQPSK)
U
Viterbi FEC (to IESS 308/309), rate ½, 3/4 & 7/8 in BPSK, QPSK and OQPSK.
U 100Hz IF resolution
U RS422, V.35, and RS232 DCE interface on both EIA 530 25 pin and RS449 37 pin connectors.
U
Can accommodate Viterbi & Sequential FEC simultaneously
U
Built in 1-FOR-1 Redundancy Controller (requires only cables, passive IF splitter/combiner &
second modem for complete 1:1 in just 2U)
U
0-99ms Doppler/plesiochronous buffer
U
Full remote M&C
U 1000 event traffic log, with facility to continuously log circuit performance at regular intervals (logs
average & worst case Eb/No and/or user BER)
U
`In The Rack` upload of revised internal software
U 25dB Tx IF level control in 0.1dB steps
U
Band limited IF input capable of operating with high composite power (ie IF input not `wide open`
and affected by out of band signals)
U 1PPM internal frequency & clock reference, with external station clock input & options for higher
stability internal references
U
CCITT & INTELSAT V.35 scramblers for closed network operation, with additional two modes for
compatibility with FDC and Linkabit proprietary patterns.
U
Deferred alarm at user set service limits (individual Eb/No, BER & Buffer slip thresholds)
U
Frequency locked clock loops (ie not phase locked) immune to clock hits caused by equipment
such as routers
U Comprehensive monitoring and status display, with explicit fault descriptions of most significant
fault for Tx & Rx paths
U
P500 1-FOR-N Switch available allowing mixed interfaces within 1:N system
U
Supported by Alphawave CAM multi-product remote M&C system which can provide centralised
log gathering on a PC (including logged circuit performance figures, eg Eb/No every 10 mins)
U
Software includes two `User Variables` to accommodate custom user requirements (such as
special alarm handling), allowing special user requested features to be added whilst still keeping
common software
U
Clear display, intuitive menus with `Normal` selections & efficient user interface with full keyboard
U Tx or Rx paths may be selected as `Off`, muting appropriate alarms in Tx or Rx only applications
U Three form `C` relays providing prompt Tx/Rx Traffic faults, as well as a prompt unit (equipment)
fault and a deferred alarm.