Your Cart

All stuff which we are selling is used.

Paradise Datacom P310 VMUX

Paradise Datacom - P310 VMUX
Paradise Datacom - P310 VMUX
Paradise Datacom - P310 VMUX
Paradise Datacom - P310 VMUX
Paradise Datacom - P310 VMUX
Paradise Datacom - P310 VMUX
Paradise Datacom - P310 VMUX
Paradise Datacom - P310 VMUX
Paradise Datacom P310 VMUX
  • Stock: 2
  • Code: BS18552
  • Model: P310 VMUX

This handbook describes how to install and configure the P300 Series Satellite Modems. This includes the original P300, the P300 Turbo, P310 L-Band and P311 mixed L-Band/IF Modems. Where ever reference is made to the P300 or P300 Series modem it applies to all products unless specifically noted.

Paradise Datacom P310 VMUX

The P300 Series may be supplied equipped with different feature sets to suit different applications. This means that the mix of features available in any modem (such as Drop/Insert, IDR framing etc) may be tailored to suit any user requirement, however typically they are grouped into one of four standard configurations as follows:

  • P300 / P310-VSATFeatures for use in VSAT applications.
  • P300 / P310-IBSFeatures for IBS/SMS use (or thin route IDR below T1) services.
  • P300 / P310-IDRFeatures for IBS/SMS AND IDR services (IDR at T1 or greater).
  • P300 / P310-TCMFeatures for use in TCM, TCM/IDR, IBS/SMS and standard IDR services.

The table on page 11 summarises the different features, and which features are available in the four standard configurations.

The P300 Series Modems are designed for operation in a typical ground station environment, providing a data link between geographically distant sites via satellite. Like its predecessors, it is physically small, light, and of rugged construction, allowing it also to be used in mobile and fly away terminals.

The P300 Series provides a data port on the terrestrial side which provides RS422, V.35, and RS232 software selectable interfaces on both 25 pin EIA 530 and 37 pin RS449 connectors. Optional G.703 interfaces provide either a T1 or E1 (1544kbps or 2048kbps) G.703 interface in addition to the standard three interfaces. The modem couples into the ground station up / down converter chains on the RF side at either 70MHz or, if the Wideband IF feature is available (standard on P300-IBS and above), 140MHz. The status of a unit is available externally on `form c` relay outputs designed to connect to station monitoring system. The modem also provides a complete remote Monitor & Control (M&C) port, allowing the status to be remotely monitored and the unit controlled or the configuration changed.

If Async ESC feature is available (standard on P300-IBS and above) the modem can provide an asynchronous Engineering Service Channel carried across the satellite link as an overhead added to the main data channel. The ESC channel can be internally linked to the remote M&C port, allowing any modem to be monitored or controlled from the distant end of the satellite link. In addition, external equipment (such as radio transceivers) if coupled into the remote M&C port may also be accessed remotely over the satellite link.

Higher specified P300 modems additionally feature many advanced functions including variable code rate Reed-Solomon, the ultimate in T1/E1 Drop/Insert functionality, separate ESC & Aux channels with independent electrical interface selection, a built in Bit Error Rate Tester (BERT) which can run continuously through the ESC or Aux channels logging results in the traffic log, plus a Closed Net Plus ESC (`minimum overhead`) mode in which the overhead varies from

To provide as simple as possible software upgrade facility, the embedded monitor & control software can be changed without opening the product. Unlike other equipment which holds the embedded M&C software in EPROMs (requiring replacement EPROMs to be shipped, changed & returned), the P300 Modem M&C software is downloaded in to FLASH memory via a rear panel serial port from a PC. A process which requires no tools and is completed in 30 minutes. For operators requiring the latest features or upgrades, the most recent release of the internal M&C software is available on our Web site ( for free download.


Technical Details

Variable data rate in 1 bps steps with fast acquisition even at low data rates

Viterbi FEC (to IESS 308/309), rate 1/2, 3/4 & 7/8 in BPSK, QPSK and OQPSK. 100Hz IF resolution
RS422, V.35, and RS232 DCE interface on both EIA 530 25 pin and RS449 37 pin connectors.

Can accommodate Viterbi & Sequential FEC simultaneously
Built in 1-FOR-1 Redundancy Controller (requires only cables, passive IF splitter/combiner & second modem for complete 1:1 in just 2U)
0-99ms Doppler/plesiochronous buffer
Full remote M&C
1000 event traffic log, with facility to continuously log circuit performance at regular intervals (logs average & worst case Eb/No and/or user BER)
`In The Rack` upload of revised internal software
25dB Tx IF level control in 0.1dB steps
Band limited IF input capable of operating with high composite power (ie IF input not `wide openand affected by out of band signals)
1PPM internal frequency & clock reference, with external station clock input & options for higher stability internal references
CCITT & INTELSAT V.35 scramblers for closed network operation, with additional two modes for compatibility with FDC and Linkabit proprietary patterns.

Deferred alarm at user set service limits (individual Eb/No, BER & Buffer slip thresholds)

Frequency locked clock loops (ie not phase locked) immune to clock hits caused by equipment such as routers
Comprehensive monitoring and status display, with explicit fault descriptions of most significant fault for Tx & Rx paths
P500 1-FOR-N Switch available allowing mixed interfaces within 1:N system 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)

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
Clear display, intuitive menus with `Normal` selections & efficient user interface with full keyboard
Tx or Rx paths may be selected as Off`, muting appropriate alarms in Tx or Rx only applications
Three form `C` relays providing prompt Tx/Rx Traffic faults, as well as a prompt unit (equipment) fault and a deferred alarm.