Paradise PD25 Evolution Series IF Satellite Modem

Paired Carrier Operation
Field Upgradeable Feature set
Data Rates 4.8 kbps to 25 Mbps (optional)
Web User Interface

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PD25 Evolution Series Satellite Modem

The Paradise PD25 Evolution Series IF Satellite Modem has been designed for cost-critical Modem applications and discerning users who demand quality and reliability at an affordable price.

This 25Mbps capable Modem offers full compliance with IESS- 308, 309, 310, 314 & 315, plus a range of data interfaces including Ethernet. The Evolution Series Satellite Modem uses 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.

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 & Control software.

Features

MIL 188/165A compliant
Field upgradeable feature set
4.8kbps to 2,048kbps in the base modem; options to 25Mbps

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 Acceleration (optional)
Ethernet Bridging, plus Brouting (option)
BPSK, QPSK, OQPSK, 8PSK (option), FastLink 8QAM (option) & 16QAM (option)
Multi-rate 2nd Generation Turbo (TPC), Viterbi, TCM, Sequential, FastLink Low Latency LDPC & RS FEC options
50 - 90MHz & 100 - 180MHz IF in 100Hz steps
Closed Network, Closed Network + ESC, IBS/SMS (option) and IDR (option)
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

Remote Control & Web Interface

48V dc Primary Power input option
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
Outdoor Transceiver FSK Monitor and Control (option)
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 terrestrial ports.
	Built-in Spectrum Analyzer for Receive Carrier, Adjacent Carrier and Super-Wide Monitoring (3 bandwidth settings).
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.

Common Main Specifications
Modulation Scheme	BPSK, QPSK, OQPSK, 8PSK (Option), 16QAM (Option)
IF Frequency Range	50-90 MHz and 100-180 MHz
IF Frequency Resolution	100Hz
Traffic Interface Electrical	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) G.703 balanced on EIA530 G.703 unbalanced on BNC female 75½
User Traffic Data Rate	4.8kbps - 2,048kbps Extends base operation to 5Mbps (Option) Extends 5Mbps to 8,448kbps (Option) Extends 8,448kbps to 25Mbps (Option) Extensions are cumulative
User Traffic Data Rate Resolution	1 bps
*Note 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 25Mbps 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 1 bps.
User Data Rate Range - IDR Option	4.8kbps to 10 Mbps (96k overhead added) Resolution of 8k (limitation of frame structure)
Audio Channels Option (P1348 emulation mode)	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. Maximum traffic rate 10Mbps.
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: 2^-12-1 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 52Mbps (with high Data Rate options)
IF Connector Type	BNC female
IF Impedance	50Ω & 75Ω, electronically selectable
Return Loss	18dB typical
Internal Frequency Reference - Ageing	<1ppm/yr
External Reference	Clocking Only: 1-10MHz in 1kHz steps. Clocking and RF Frequency: 10MHz, 0dBm±1dB
Modulator
Output Power Level	0 to -20dBm Continuously Variable in 0.1dB steps
Output Level Stability	±0.5dB, 0°C to 40°C
Transmit Filtering	Intelsat IESS compliant. a = 0.35
Occupied Bandwidth	1.2 times Symbol Rate
Recommended Channel Spacing	1.4 times Symbol Rate
Phase Accuracy	±2° maximum
Amplitude Accuracy	±0.2dB maximum
Carrier Suppression	-30dBc minimum
Output Phase Noise	As IESS-308, nominally 3dB better.
Output Frequency Stability	<1ppm/yr
Harmonics	Better than -55dBc/ 4kHz in band
Spurious	Better than -55dBc/ 4kHz in band
Transmit On/Off Ratio	55dB minimum
External Transmit Inhibit	By external contact closure or by TTL signal applied to rear panel Alarms & AGC connector
Demodulator
Input Range	-30 to -60dBm wanted signal
Maximum Composite Signal	30dB above level of desired input up to a maximum of 0dBm
Frequency Acquisition Range	Selectable from ±1kHz to ±32kHz up to 10 Mbps (1kHz steps) ±10kHz to ±250kHz from 10 to 52 Mbps (10kHz steps)
Acquisition Threshold	<5dB Es/No QPSK
Acquisition Time	At 9.6kbps, less than 1s at 6dB Es/No. QPSK At 10 Mbps, less than 100ms at 6dB Es/No. QPSK
Clock Tracking Range	±100ppm minimum
Receive Filtering	Intelsat IESS compliant. α = 0.35
Performance Monitoring	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.
AGC Output	Buffered direct AGC output for antenna tracking etc
Clocking and Buffering
Clock Integrity	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) Tracking range ±100ppm/min Slaves Tx timing from Rx clock. (Includes full asymmetric operation)
Rx Clocking Buffer Disable Tx Input Clock Internal	Clock from Satellite Plesiochronous. (Includes full asymmetric operation) Standard (±1ppm) External timing clock (DTE interface only)
Station Reference Inputs	75Ω 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)
	120Ω 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.
Buffer Size	Selectable in 1ms increments from 0ms to 99ms. Automatically adjusted to slip an integer number of terrestrial multi-frame lengths for framed rates Buffer storage: Maximum buffer size - 256kbytes
Framing and Deframing
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%
Format of Other Modes	For custom options, see handbook.
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