Description

Spirent – SX14 Data Link Features and Specifications:

Typical simulator applications include testing the operation, performance and reliability of multiplexers, bridges, encrypters, network applications and other communications hardware and software. When used for link simulation, these simulators physically connect directly between two pieces of equipment to replace conventional data links such as satellite connections, WANs or telephone networks. They can also be used in line with a real data link to add additional delays or errors or to simulate the effects of adding an additional link to the system. The front panel has an eight line by 40-character display panel and 28 keys for entering parameters and operating the unit. Requires at least one interface module.

Spirent – SX14 Data Link Specifications

• Data bit rates: 100bps to 155.52Mbsp (module dependent)
• Probability for bit errors can be set in 1 x 10-12 increments ranging
• from zero errors to errors on all bits
• Two SX13-style slots and three SX14-style slots available
• Full-duplex digital link
• Internal, external, and asynchronous data channel clocking
• Bypass, inward or outward loopback, keyboard lock, and self test
• Fully programmable test sequences

• Type of Channel
  • Full-duplex digital link
• Data Rates
  • 100 bps to 155.52 Mbps
• Error Generation:
  • Random (Gaussian) bit error rates from 0,1 x 10-12 to 9 x 10-1, 1
  • Logical errors, BPV or Code errors selectable for highspeed interfaces
  • Optional targeting of errors at specific bits and subchannels of formatted streams
• Burst Error Density (errors/bit):
  • Burst error rates from 0, 1 x 10-8 to 9 x 10-1, 1
  • Logical errors. BPV, force to 0 or 1, or Code errors selectable for high speed interfaces
  • Selectable burst length from 1 to 16,777,215 bits or from 1 to 9,999 ms
  • Selectable gap between bursts from 1 to 99,999,999 ms
• Burst Error modes
  • Fixed gap length, fixed burst length
  • Random gap length, fixed burst length
  • Fixed gap length, random burst length
  • Random gap length, random burst length
  • Manual burst trigger, fixed burst length
  • Manual burst trigger, random burst length
  • Manual single bit error injection
• Delay Generation
  • Delays up to 10 seconds in 1 msec, 1 usec, 16 to 48 bit steps, each direction
  • Displays delays in msec, usec, or bytes
  • Optional targeting of delays at specific bits and subchannels of formatted streams
• Low Speed Data Channel Interfaces Available
  • RS-232-C
  • RS-449 (RS-422-A)
  • RS-423-A
  • EIA-530
  • V.35
  • DS1 (T1) (1.544 Mbps)
  • E1 (G.703 2.048 Mbps)
• High Speed Data Channel Interfaces Available
  • E3 (G.703 34.368 Mbps)
  • T3 (44.736 Mbps)
  • STS-1 (51.84 Mbps SONET)
  • HSSI (up to 51.84 Mbps)
  • STS-3 (155.52 Mbps SONET)
  • OC-3 (155.52 Mbps SONET)
• Data Channel Clocking
  • Internal
  • External
  • Asynchronous
  • Recovered
• Programming
  • Programmable test sequences with complex link degradations
  • Up to 99 parameter steps per sequence
  • step duration from 1 to 9,999,999 seconds
  • All SX/14 parameters are programmable including error rates, delay and triggers
  • Sequencing capabilities include manual step trigger and auto repeat
• Other Built-in Features
  • 8 line by 40 character LCD
  • 10-year lithium battery backup for program memory
  • Self test, bypass, loopback, and keyboard lock modes
• Remote Control Options
  • IEEE-488
  • RS-232
• Error Targeting Option
  • Targets one of six error types into specific selected overhead bits in T1, T3, E1, E2, E3, and STS-1 data streams
  • Errors can also be targeted into selected DS0 channels in T1 and E1 data streams
  • Programmable User-defined pattern injection into any data stream
• Extended T1/E1 Simulation Option
  • Permits assigning any one of 10 definable delays to each timeslot (DS0) in T1/E1 data stream
  • Permits targeting within a variety of framing formats to any desired bits in multiframe
  • Each channel can be targeted independently
  • Fixed, random and burst errors
  • Injected errors types include logic reversals, zero
  • insertions, one insertions
• Size and Weight
  • 19″ wide (rack mountable)
  • 5.25″ high
  • 14″ deep
  • 19 lbs
  • Power Requirements
  • 115 or 230 VAC +/- 10%
  • 47-66 Hz