ECD » Test Equipment » RDS-Plus

RDS-PLUS Router Delay Simulator Plus Network Latency Simulator 2 User Selectable Interface Modules

Features/Benefits

• Bi-directional
• Dual channel, independent delay buffers per channel,
• Full Duplex
• Supports Split Speed and Delay
• Interfaces supported:
  DS3, E3, STS-1, DS1/E1, TTL, HSSI, RS-232, RS-422/449, RS-530, V.35, and X.21
• Data Rates
  Synchronous, to 51.84Mbps
• Network Simulation
  Delays of 1mS up to 4 Seconds in 1mS increments
• Random Error insertion from 1x10^-1 to 1x10^-12 errors per bit
• Burst Error insertion
• BERT 511 generator and tester
• Timing Internal, or from either port interface. Accepts external clock for synchronization of internal timing
• HyperTerminal operator console interface
  
• Status LED's for each port allows ease of connection and trouble shooting
• Internal 110/220VAC power supply
• Sturdy Metal Enclosure

Description

The Router Delay Simulator Plus (RDS+) allows users to test/stage critical DTE equipment for reliable network operation while simulating network delay times.  The RDS+ provides a realistic simulation of physical network behavior with respect to time delays and bit errors.  It supports user circuit rates up to OC-1 (51.84 Mbps) while providing delays from zero to a maximum of 4 seconds.  Both continuous random and burst errors are supported.

By using the RDS+ in place of or in series with a real data link (WAN) a wide variety of error conditions can be introduced under controlled and testable conditions.

The RDS+ has two data port interfaces that support RS-232, RS-422/449, RS-530, V.35, X.21,  DS1/E1, TTL, HSSI, DS3, E3, or STS-1. The data interfaces can be mix and matched where applicable, such as V.35-to-RS-530 connection.

Data Clocking can be driven from various sources.  It can be provided via the TX and/or RX clocks of the various data port interfaces.  Clocking can also be provided from a programmable clock generator internal to the RDS+.  An independent external timing source can be used to frequency-lock the internal timing generator via an external timing port on the back of the RDS+.

Data/Control-Lead Delay is programmable in either seconds or number of data bits.  Regardless of which method is used the RDS+ delay buffer has a maximum storage capacity of 425 million bits.  An option exists to include a control lead on some interfaces with the data delay.

The RDS+ can introduce Random and/or Burst errors into the data stream.  These two error types can be used independently or in a combined fashion.  The Random error rate is entered as a range of 1x10⁰ to 1x10^-13 errors per bit.  Burst errors are entered as duration and period.  The error burst duration is from 1ms to 4 seconds and the interval between bursts is from 1ms to 16seconds.  The type of error introduced can be the compliment of the data bit, a forced 0, or a forced 1.

The RDS+ contains one BERT generator and one BERT tester.  The generator and tester can be independently attached to either data port.  When activated the BERT generator replaces the assigned data port data with a standard x⁹+x⁵+1 polynomial function to generate a pattern of 511 bits in length.  When activated the BERT tester can monitor the data port in either a continuous or a windowed mode.  The continuous mode is manually re-triggerable.  The windowed mode can be set for a monitor widow from 1 to 256ms.

The RDS+ supports digital loopback of either data port.

Loopback, Data Delay, Error Simulation, and BERT can all be used simultaneously on a given port.

Installation and operation is provided via an operator console port.  This port is a RS-232 port that has been tailored for use with HyperTerminal that comes standard with most PCs.  RDS+ status and configuration is displayed in real time via this interface.

The RDS+ has a Power LED, one System Status LED and a set of status LED's for each Port interface, which allow the user to visually confirm the presence of data and clock, and certain control or status signals.

The RDS+ is designed with state of the art digital CMOS technology.  The core component of the RDS+ is a Field Programmable Gate Array (FPGA) which allows for a wide selection of interface speeds, clock routing settings, and error simulations.

The RDS+ is housed in a sturdy 1U high metal enclosure which can be rack mounted.  It is powered by an integrated 90-240V 50/60Hz power supply.

The RDS+ has a three year warranty and a 24 hour turnaround on warranty repairs.