The Paradise Evolution Series PD55L-MIL is a 55Mbps
Open Network/Closed Network L-Band Modem,
fully compliant with MIL188-165A and IESS-308/309, offering a range of data
interfaces including Ethernet, HSSI,
serial LVDS, plus a range of modulation
schemes including 16QAM.
The Evolution Series Satellite Modem
embodies a new design concept
whereby core functions are implemented
with programmable logic, which allows
easy reconfiguration to the needs of the
user, and provides future-proof flexibility.
PD55L-MIL Ease of Operation
The Modem firmware and software is
easily upgraded through an Ethernet
management port, plus an innovative
new menu structure makes configuration
a simple procedure. Advanced user
interfaces support the display of text in
different languages for universal appeal,
and a unique Web User Interface offers
full remote control and in-depth
performance analysis tools using Internet
Explorer without special Monitor &
MIL 188/165A compliant
Field upgradeable feature set
4.8kbps to 55Mbps
RS422, X.21, V.35, RS232 interfaces; HSSI, Serial
LVDS, Eurocom D/1, Quad E1, G.703 E1/E2/E3/T1/
T2/T3 (options), Sat-Abis (optional) and Ethernet, IP
Drop and Insert to E1/T1 (option) with extended functions: RBS, CAS
Built-in 1:1 Redundancy Controller
Embedded web server offers full M&C
48V DC Primary Power input option
Remote Control & Web Interface
Web User Interface available via embedded web
server including (patent pending); Receive Spectrum
Analyzer, Receive Constellation Monitor, BER Tester
and graphing of Eb/No, Rx Power, BER plus other
parameters, using Internet Explorer
Ethernet with embedded web server and SNMP network management support
RS485 multi-drop addressable
M&C via Satellite ESC channel for distant control of Modems and other devices
RS232 for direct PC connection
Web User Interface
A unique Web User Interface provides full Monitor & Control plus graphing
of Eb/No, BER, Receive Power and other operating parameters, plus
a Receive Spectrum Analyser, Receive Constellation Monitor and BER
Tester for detailed signal analysis and performance validation via Internet
Explorer. Logged graph data can be sent via email to any email address.
Simple to use EZ-BERT BER Tester Option allows real time bit error
measurements through traffic or ESC channel, or between the
Built-in Spectrum Analyzer for Receive Carrier, Adjacent Carrier and Super-Wide Monitoring (3 bandwidth
Built-in Receive Constellation Display
for channel diagnostics.
Paired Carrier Operation
Paired Carrier technology
allows both the uplink and
downlink signals to occupy the same space segment.
An adaptive self-interference cancellation technique
removes the uplink signal components generated by
the local terminal from the received signal off satellite,
allowing demodulation of the far end signal.
Ethernet (10/100 BaseT) IP Traffic on RJ45 with link and traffic indicators. Electronically Selectable with other interfaces fitted
Traffic Interface - Options
RS422 including X.21 DCE and DTE emulation, V.35 and RS232 on EIA530 connector 25 pin female D-type (Option) EIA530 maximum 10Mbps, RS232 max 100kbps LVDS 25 pin female D-type (Option) HSSI 50 pin HD SCSI-2 connector (Option) G.703 balanced on EIA530 G.703 unbalanced on BNC female 75O
User Traffic Data Rate
4.8kbps - 10Mbps Extends base operation to 16,896kbps (Option) Extends 16,89625kbps to 25Mbps (Option) Extends 25Mbps to 55Mbps (Option) Extensions are cumulative
User Traffic Data Rate Resolution
The combination of FEC Rate, Modulation scheme and Satellite Overhead limits the Traffic Data Rate Range in all modes.
User Data Rate Range - Closed Network
4.8kbps to 55Mbps no Satellite Overhead (with high Data Rate options)
User Data Rate Range - Minimum Overhead (Closed Network Plus ESC)
As Closed Network above except limits inclusive of overhead of approximately 1.4 times the ESC baud rate. Resolution of 1bps. Supports ESC rate from 110 baud to >38.4 kbaud.
User Data Rate Range - IBS/SMS Option
4.8kbps to 10 Mbps (6.7% Satellite Overhead added). Resolution of 1bps.
User Data Rate Range - IDR Option
4.8 kbps to 10 Mbps (96k overhead added) Resolution of 8k (limitation of frame structure)
Audio Channels Option
Used with IBS/SMS satellite framing and IDR Options to provide 2 x audio 32kbps ADPCM coded channels within a 64kbps IBS carrier, and 2 x audio 32kbps ADPCM coded channels plus 64kbps data within a 128kbps IBS carrier
Inner Forward Error Correction
Viterbi BPSK/QPSK/OQPSK - Rates 1/2, 3/4, 7/8, k=7 to IESS-308/309 Option: TCM 8PSK - Rate 2/3 to IESS-310
Option: TPC BPSK/QPSK/OQPSK - Rates 5/16, 21/44, 0.493 (Paradise), 2/3, 3/4, 0.789 (Paradise), 7/8 (Paradise), Rate 7/8 de facto Options: TPC 8PSK - Rates 3/4 de facto, 7/8 de facto Options: TPC 16QAM - Rates 3/4 de facto, 7/8 de facto
Outer Forward Error Correction
Concatenated Intelsat Reed-Solomon Outer Codec to IESS308/310 with Custom Option offering variable code rate up to 10 Mbps.
Scrambling - IBS/SMS Option
Synchronised to framing per IESS-309 up to 10 Mbps
Scrambling - IDR Option and Closed Network
With RS Coding: synchronised to RS overhead. Without RS Coding and Non-TPC FEC: V.35 self synchronising No RS Coding with TPC FEC: 212-1 up to 10 Mbps
Scrambling - Closed Network Plus ESC
32kbps or above: synchronised to ESC overhead.
Less than 32kbps: as per closed network. V.35 Scrambler has CCITT Intelsat "FDC" and "Linkabit" modes up to 55Mbps (with high Data Rate options)
Scrambling - OM-73 Option
OM-73 compliant scrambling
14 dB typical
Clocking Only: 1-10MHz in 1kHz steps. Clocking and RF Frequency: 10MHz, 0dBm±1dB
Output Power Level
-5 to -30dBm Continuously Variable in 0.1dB steps
Output Level Stability
Intelsat IESS compliant.A=0.35
1.2 times Symbol Rate
Recommended Channel Spacing
1.4 times Symbol Rate
-30 dBc minimum
Output Phase Noise
As IESS-308, nominally 3 dB better.
Output Frequency Stability
<1ppm/yr 7.5E-8/yr with High Stability Reference Option
Better than -55dBc/ 4kHz in band No worse than -45dBc out of band to 5GHz is re-inserted into the terrestrial multi-frame in the
Better than -55dBc/ 4kHz in band No worse than -40dBc out of band 10MHz to 5GHz
Transmit On/Off Ratio
55 dB minimum
External Transmit Inhibit
By external contact closure or by TTL signal applied to rear panel Alarms & AGC connector
-20 to -70dBm wanted signal
Maximum Composite Signal
35dB above level of desired input up to a maximum of 10dBm
Frequency Acquisition Range
Selectable from ±1kHz to ±32kHz up to 10 Mbps (1kHz steps) ±10kHz to ±250kHz from 10 to 55 Mbps (10kHz steps)
<5dB Es/No QPSK
Clock Tracking Range
Intelsat IESS compliant. A=0.35
Measured Eb/No (range 0-15dB, ±0.2dB). Measured Frequency Offset (100Hz resolution).
Wanted signal level strength indicator centred on the middle of the Rx. Input range.
Buffered direct AGC output for antenna tracking etc.
At 9.6kbps, less than 1s at 6dB Es/No. QPSK At 10 Mbps, less than 100ms at 6dB Es/No. QPSK
Clocking and Buffering Specifications
Frequency Locked Loops give phase-hit immune operation even with poor clock sources such as routers etc.
Tx Clocking Internal
External Rx Clock
Standard (±1ppm) 7.5x10E-8/yr with High Stability Option Tracking range ±100ppm/min Slaves Tx timing from Rx clock. (includes full asymmetric operation)
Buffer Disable Tx Input clock
External timing clock(DTE interface only)
Clock from Satellite Plesiochronous. (Includes full asymmetric operation) Standard (±1ppm) 7.5E-8/yr with High Stability Option
Station Reference Inputs
75O BNC female Station Clock Connector, transformer isolated. 1MHz to 10MHz in 1kHz steps (accepts sinusoidal >0dBm or square-wave e.g., G.703 para 10 120O RS422 compatible input, 1MHz to 10MHz in 1kHz steps via Async ESC connector NB: When set to 10MHz, the station reference may replace internal reference to all internal circuitry and reference outputs on the IF ports. The unit automatically switches back to internal reference if the station reference fails.
Selectable in 1ms increments from 0ms to 99ms at data rates up to 42Mbps and from 0 ms to 80 ms at data rates from 42Mbps up to 55Mbps . Automatically adjusted to slip an integer number of terrestrial multi-frame lengths for framed rates Buffer storage: Maximum buffer size - 256 kbytes
Framing and Deframing Specifications
Closed Network Format
Unframed, no overhead.
IBS/SMS Option Format
Intelsat IBS to IESS-309 and IESS-310 up to 10 Mbps, and Eutelsat SMS to EESS501.
IDR Option Format
Intelsat IDR to IESS-308 and IESS-310 up to 10 Mbps.
Closed Network plus ESC Format
Provides variable rate asynchronous ESC, optional synchronous scrambler above 32kbps to replace error multiplying V.35 scrambler, optional backward alarm facility and optional timeslot ID maintenance when used with Drop/Insert, all in minimum possible overhead down to <0.5%
Poor BER Performance
Deframer includes extended threshold operation that improves performance when used with Reed- Solomon in very poor BER conditions (where a single uncorrectable RS codeword can contain enough corrupt frame alignment words to knock an Intelsat specified deframer out of frame sync). Up to 10 Mbps