Cabletron Systems SEHI-22, SEHI-32, SEHI-24 manual JAM Output, Fragment Extension, Fault Protection

INSTALLATION REQUIREMENTS/SPECIFICATIONS

JAM Output:	Collisions are propagated
	through the network using the
	JAM signal of an alternating
	pattern of 1's and 0's in
	accordance with 802.3
	specifications for a repeater unit.
Fragment Extension:	Packet fragments are extended to
	a minimum of 96 bits using the
	JAM [1,0].
Fault Protection:	Each segment will disconnect
	itself from the other segments if
	32 consecutive collisions occur, or
	if the collision detector of a
	segment is on for longer than
	approximately 110 ∝s. This fault
	protection will reset
	automatically after one packet is
	transmitted/received onto the
	fault protected segment without
	causing a collision.

POWER SUPPLY REQUIREMENTS

Note: The SEHI has a universal power supply. This unit allows you to use an input power from 90 to 264 VAC, 47-63 Hz.

The power supply has two outputs of +5 volts and +12 volts. The maximum output power is 40 watts and the minimum efficiency is 65% under all conditions of line at full load. The minimum and maximum load current from each output is shown below.

Output	Min. Load	Max. Load	Max Power
+5 Volts	0.75 Amps	4 Amps	20 Watts
+12 Volts	0.00 Amps	2 Amps	24 Watts

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