Cabletron Systems MR-2000C User Manual - page 6
RECEIVE
,
COLLISION
, and
FAULT
LED
for each segment. The LEDs for
RECEIVE
and
COLLISION
are
pulse stretched for increased viewing effect.
RECEIVE
Indicates that the repeater is receiving a data packet
on that segment.
COLLISION
Indicates that a collision is occurring on that seg-
ment.
FAULT
Indicates that the MR-2000C has electrically dis-
connected that segment from the network because
of a cable fault or 32 consecutive collisions.
BNC INTERFACE (PORT 1)
Type:
BNC receptacle, with gold center contacts, for use
with BNC type plugs and RG-58A/U thin-net ca-
ble.
Internal Transceiver:
Cabletron Systems TMS-3 Transceiver.
Specification for the TMS-3 are available upon re-
quest.
AUI INTERFACE (PORT 2)
Parameter
Typical
Worst
Value
Case
Frequency Range:4 to 20 MHz
5 to 15 MHz
RX and CP Pair Input Impedance
Differential:
78 ohms
76 to 80 ohms
Common-mode:
Greater than 20.0 ohms
AUI INTERFACE (PORT 2) (CONT)
Parameter
Typical
Worst
Value
Case
Common-mode Voltage Range