The Technisys Bit Error Tester is a stand-alone device that can be setup
on a bench top or mounted in a 19” equipment rack with Technisys
P/N 701012 rack mount. It is designed to provide unframed, high speed,
serial binary output ranging from T1 to STM-1 rates. Outputs can be encoded
with applicable zero suppression techniques.
Signal levels include differential and single ended AMI,
CMI, ECL, PECL, RS422 and LVDS levels for copper interface
and STM-1 (OC3) fiber optic interface. All electrical I/O
is through rear panel concentric twinaxial connectors or
industry standard BNC connectors. The SFP I/O can be electrical,
if Infiniband or Fiber Channel device is installed. NRZ interfaces
are all differential pairs. Fiber I/O it through LC connectors
and a SFP transceiver.
Controls and indicators are located on the front panel.
All controls, indicators and I/O are listed below. Please
note that this table includes features and functions for
a unit has all available options. Refer to footnote for Bit
Error Tester options. Also note that all toggle switches
are locking toggles.
The module includes an on-board test pattern generator, which provides
a Pseudo-Random Bit Stream (PRBS). Three patterns are available by
rotating the front panel PATTERN SELECT switch. Available patterns
include R3, R7 and R15, which are recursion patterns that are 2^X –1lengths
where X is the R pattern number (i.e. 3,7,15). The purpose is to test
and trouble shoot downstream cables and equipment or to determine if
through put is missing from the module. It can also be used for system
wide testing and/or system clock. To put the module into Test Mode,
place the TEST ON/OFF switch into the upper position. Once the test
signal has assisted in trouble shooting, it can be turned off by moving
the TESTER ON/OFF toggle to the OFF position.