Telenetics 2185 manual Glossary-3

Telenetics 2185

RDY	Ready. LED indicator lamp that illuminates when
	the main channel inbound DSR or DTR is ON.
Straight-Through	Cable terminated with 25-pin EIA connector at each
Cable	end. Connections are made on a pin-to-pin basis.
	See Figure 2-2.
Subchannel	Subchannels contend for use of the main channel to
Contention	send data to the CPU or controller. If more than one
	subchannel tries to access the main channel at one
	time, the 2185 selects one subchannel and blocks
	data from all the others. You may select either of
	two contention modes — either data contention or
	control signal contention.
Synchronous	When operating in a synchronous data environment,
Retiming Buffer	the 2185 uses an internal ±4-bit buffer to retime
	inbound subchannel data to the main channel clock.
	The buffer compensates for phase differences
	between the subchannel and main channel clocks
	and can absorb clock jitter and minor differences in
	frequency.When the 2185 is configured for
	asynchronous operation, the retiming buffer is
	bypassed.

Glossary-3