Advanced PCM Data Brick 

Bit Sync

Input

BNC connector, single-ended input

Codes

NRZ-L/M/S, RNRZ-L, BIØ-L/M/S, DM-M/S, MDM-M/S, RZ

Level

500 mV to 10 Vp-p

Derandomizer

5 lengths; 9, 11, 15, 20, and 23; forward and reverse directions

Impedance

50 ohms, 75 ohms (default), and 10K ohms, programmable

Sources & Type

One external data input, single-ended or differential (RS-422)

Polarity

Normal or inverted

Operating Range

100 bps to 30 Mbps, all PCM codes

Bit Error Rate

Within 1.0 dB of theoretical curve up to maximum data rate

Acquisition Range

Up to ± 5% of programmed data rate

Acquisition Time

Within 50 bits (average) at E_b/N_o = 15 db and F_o = 0.5% given random data 50% transition density

Sync Maintenance

Retains sync with NRZ codes at  E_b/N_o  = 3 dB with 128-bit transition gaps occurring every 512 bits with random data

Bit Slippage

Maintains phase with BIØ codes at E_b/N_o  = 12 dB with over 2000 continuous 1’s or 0's; at E_b/N_o  = 0 db with random data (NRZ & BIØ)

Loop Bandwidth

0.02 to 5.00%, continuously programmable with 0.02% resolution

Tracking Range

Up to ± 20% of programmed data rate

Baseline Variation

No degradation beyond 1 dB from theoretical performance curve with superimposed wave form equal to 100% of the p-p signal input at 0.1% of the bit rate

DC Offset

100% of input signal level up to ±10V

Output

NRZ-L data and programmable clock, 0° or 180°, BNC connector, TTL into 50 ohms; also D-type connector-RS-422 levels

Decommutation*

Input

Internal, direct from bit sync

External, NRZ-L data and programmable clock,  0° or 180°, TTL

Operating Range

100 bps to 30 Mbps

Sync Pattern Length

4 to 64 bits, programmable

Sync Pattern Errors

0 to 16 bits, programmable

Sync Word Mask

Any bits masked, programmable

Sync Strategy

1 to 16 pattern matches (lock and drop), programmable

Bit Slip

0, ±1, ±2, ±3 bits, programmable

Data Word Length

4 to 32 bits, programmable

Orientation

MSB/LSB orientation, programmable

Commutation

Super, sub, irregular, programmable

Time

Independent time tag of each minor frame

Minor Frame Length

Up to 65,536 words/minor frame, programmable

Major Frame Length

Maximum of 33,554,432 bits or 4096 minor frames

Major Frame Sync

SFID, FCC, URC, or unique frame sync

SFID ID Word

1 to 16 bits, programmable

SFID Counter

Any word within minor frame, programmable

Direction/Start

Up or down, 0 or 1, programmable

Frame Format ID

Any word within the minor frame; up to 16 different formats supported

IRIG Time

Input

BNC connector, single-ended modulated carrier waveform

Codes

A, B, and G; 1/4X, 1/2X, 1X, 2X, 4X, programmable

Amplitude

.5V to 10 Vp-p from mark; 3:1 mark-space relationship

Flywheel

Indefinite flywheel if no signal is present; auto-reseed/resync when signal is re-acquired

Remote Seed

Programmable seed start-time from USB control interface

Control

Interface

USB-2.0 interface, time stamped data output, all samples

USB-1.1 interface also supported for lower speed applications

Setup

OMEGA-SERV or OMEGA-FIRE, each featuring the Common Database or user-developed software

Power

 Battery

Rechargeable COTS battery, external charger provided with battery-powered configuration

2-hour operating life typical

DC

Accepts 10 VDC to 35 VDC input

AC

Accepts 110 VAC, supported with external AC/DC unit

Consumption

5W typical

Physical

Connectors

BNC for PCM data and IRIG time inputs, BNC for NRZ-L data and clock outputs and inputs, 15-pin “D” for RS-422 NRZ-L data and clock outputs, 6-pin twist lock for +28 VDC power and battery charge

Power Switch

Remote on/off or auto-on with USB connector

LED

RED/YELLOW/GREEN = No setup

YELLOW = Input levels low

RED = Bit Sync not locked

GREEN = Bit Sync locked

Housing

Aluminum, black; conductive cooling; mounting holes

3.5” (W) by 9” (L)  by 2.9” (H) (maximum height with battery and feet)

3.5” (W) by 9” (L)  by 1.5” (H) (no battery or feet)

The full housing is shown on page one. Below is the brick front, which accepts connections for Data In, IRIG In, BS Out, and Decom In. The rear panel connects to your laptop.