• SX Series V-35 interface Module Installed

Full-Duplex Operation Spirent Adtech SX12 Data Channel Simulator Each simulator has two separate channels to simulate the bi-directional characteristics of a full-duplex data link. Each channel operates independently and has both transmit and receive functions. The SX/13 model also permit different delay and error settings for each direction of the full-duplex data stream. Bypass and loopback modes can be selected whenever standard bi-directional flow is not required.

Delay Generator Spirent Adtech SX12 Data Channel Simulator Each channel uses a variable length first-in-first-out delay buffer with user-selectable delay and data rate parameters. These parameters set the length of this buffer  which in turn determines the amount of time it takes data to pass through each channel. The maximum delay length depends on the data rate (lower data rates permit longer maximum delays). At the lower rates, delays up to 9,999 ms (just under 10 seconds) are possible. Delays can be specified in milliseconds or bits depending on the measurement requirements of the test.

Error Generation Spirent Adtech SX12 Data Channel Simulator Each channel has a and a The Random Error Generator simulates background errors caused by Gaussian noise and is active during gaps between error bursts. Random error rates can range from 1 x 10-9 to 1 error per bit for the SX/12 models or from 1 x 10-12 to 1 error per bit for the SX/13. The Random Error Generator normally injects logical errors. However, the SX/13 can also be set to inject BPVs (Bipolar Violations) when bipolar interfaces such as DS1 are used.

NOTE:  No software of any kind (external or internal) is provided with the Hardware. Please contact Spirent to obtain software license rights and maintenance support.