Model 2430P 32Mbps Bit Synchronizer

Model 2430D 40Mbps PCI Bit Synchronizer

Product Support

Single and Dual Channel Models
8 bps to 40 Mbps all codes (yes, even Bi-phase !)
Best in class BER performance
Advanced filtering and PLL design makes set-up and operation a snap
Color front panel LCD display
RS-232 & Ethernet remote interface
Optional:

• Viterbi encoder/ decoder, QPSK

• Bit Error Rate Tester (BERT)

• Format Synchronizer (FSYN)

System Manual

Datasheet

Technical Specs

Overview

The 2430D is a rack-mountable, single or dual stream PCM bit synchronization system that provides maximum performance in minimum space. Built in a compact 3.5 inch chassis, the Model 2430D comes in configurations containing one or two Acroamatics 1611D Bit Synchronizer cards that operate effortlessly at rates up to 40Mbps, regardless of code. Available options include: Viterbi decoding and programmable Bit Error Rate Tester (BERT) and Frame synchronizer - assuring accurate and error-free mission performance. In addition to all standard IRIG codes, the uniquely flexible architecture of the Model 2430D allows Acroamatics to offer the customer additional custom code processing functions on special order. Equipped with a built-in 6.2" TFT LCD display, the Model 2430D provides simple and convenient front panel setup and display of device parameters and status. Remote monitoring and programming capability is available via serial both Ethernet interfaces. An embedded processor provides nonvolatile memory storage for setup programs. Acroamatics supplies a Windows compatible graphical user interface for use with the serial and Ethernet remote control interfaces.

Configurations

Model 2430D Standalone Single Stream Bit Synchronizer
Single stream bit synchronizer complete with all standard codes and the ability to provide additional code processing on special order. Options include additional bit synchronizer card and upgrades for Viterbi, FSYNC/BERT, HDB3.

Model 2430D-PP Standalone Dual Stream Bit Synchronizer
Dual stream bit synchronizer complete with all standard codes and the ability to provide additional code processing on special order. Options include upgrades for Viterbi, FSYNC/BERT, and QPSK ambiguity resolution.

System Software

The standard Bit Synchronizer GUI can program and monitor the 2430D over a network. The same GUI can also program and monitor 1601P, 1611P, and 501V cards, a Telemetry Data Processor, a Acroamatics 2440V VME Multi Bit Sync Chassis, a Model 2430V or 2650P PCI Multi Bit Sync Chassis.

Technical Specs

SIGNAL INPUTS
Source	Program select, 1 of 5 inputs: 3 single-ended, 1 differential, 1 TTL/RS-422
Isolation	Greater than 60dB at 40MHz
Impedance	Program selectable: Hi-Z/Lo-Z. Single Ended: 4kΩ/75Ω, Differential: 10kΩ/150Ω
Signal Level	Single Ended: 0.2 to 30V p-p, Differential: 0.2 to 25V p-p
DC Offset	20V max Single-Ended, Hi-Z
Baseline Variation	Tracks sinusoidal offsets to 100% p-p signal amplitude at 0.1% bit rate
PCM Codes	Program selectable: NRZ-L/M/S, Biø-L/M/S, DBiø-M/S, DM-M/S, MDM-M/S, RZ
Derandomizer	Program selectable: RNRZ 9/11/15/17/23, forward/reverse
SYNCHRONIZATION
Bit Rate Range	8bps-40Mbps, all codes
Tuning Resolution	0.1% of bit rate
Capture Range	3 times the programmed loopwidth, typical
Tracking Range	±12% typical, with programmable limiter
Loop Bandwidth	0.1% to 3.2%, program selectable in 0.1% increments
Sync Threshold	0dB for NRZ-L and Biø-L codes
Sync Maintenance	(LW=0.1%) –2dB NRZ-L and Biø-L codes
Sync Acquisition	(LW=1.6%, SNR > 12dB) Typically less than 32 bit periods
Sync Retention	(LW=0.1%, SNR > 3dB) Retains sync through > 128 consecutive dropouts
Bit Error Rate	(LW=0.1%) better than 1dB of ideal bit error rate performance curves (0.75db typ)
DATA/CLOCK OUTPUTS (TAPE & CODE OUTPUTS)
NRZ-L Data	Jumper Select: three TTL, one RS422/TTL
Data Clock	One each: 0º, 90º, 180º, 270º; RS422/TTL at 0º & 90º
Data Polarity	Program selectable: normal/inverted
PCM ENCODER
Data Source	Program selectable: Recovered Data or External data/clock
Outputs	±2 Volts balanced output, 50mA drive current
Randomizer	Program selectable: RNRZ 9/11/15/17/23, forward, reverse
PCM Codes	Program selectable: NRZ-L/M/S, Biø-L/M/S, DBiø-M/S, DM-M/S, MDM-M/S, RZ
EXTERNAL DATA/CLOCK INPUT
Signal Type	Jumper selectable: RS422 or TTL
Impedance	120Ω RS422, 75Ω TTL
Data Code	Program selectable: NRZ-L/M/S, Biø-L/M/S, DBiø-M/S, DM-M/S, MDM-M/S, RZ
Data Clock	Program selectable: Normal/Inverted, 1x or 2x
CONVOLUTIONAL ENCODER/DECODER (Optional)
Viterbi Decoder	Rate 1/2, k=7: includes differential decoding, V.35 descrambling, and G2 invert
Symbol Formats	serial, parallel, and staggered parallel

Convolutional Encoder	Rate 1/2, k=7: includes differential encoder, V.35 scrambler, and G2 inverter
Symbol Formats	serial, parallel, and staggered parallel
FORMAT GENERATOR/SYNCHRONIZER (Optional)
Format Generator	Programmable frame length, sync pattern and mask
Synchronizer Source	Recovered data, external data, or test generator
Synchronizer Strategy	Pattern match in "search", programmable error limits for "check" and "lock" states
Other Features	Bit slip enable, auto polarity enable, data source/ambiguity resolution
BIT ERROR RATE TESTER (Optional)
Transmitter Pattern	PRN sequence: 2¹¹-1, 2⁷-1, 2⁹-1, 2¹⁵-1 (forward/reverse)
Pattern Clock Source	Program selectable: Bit Rate Clock or External Clock
Blanking	Program selectable: 32, 64, 128 bits
BER Sample Period	Program selectable: 10³ to 10⁹bit periods, or continuous accumulate
Other Features	Automatic pattern synchronization, forced error ON/OFF
PHYSICAL
Power	115/240 VAC ; 50-60 Hz, 3A max
Dimensions	3.48" (8.84cm) H x 19.0" (48.26cm) W x 20.19" (51.28cm) D
Temperature	Operating 0 to +40° C, Non-Operating -40 to +86° C
Relative Humidity	Up to 90% non-condensing
Shock	6G, Non-operating 50G
Vibration	Operating 0.5G, 5 to 2000 Hz, Non-operating 1.2G, 5 to 500 Hz
specifications subject to change without notice