APPENDIX C. - TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSES
"Power" LED doesn't light
--Model 2100 is improperly
connected to AUI port
--Node is not turned ON
--AUI Port of card is not enabled
(BNC port may be enabled
instead)
"Link" LED doesn't light
--10BaseT hub or concentrator
is defective
--Network cabling uses improper
wire pairing
--Network is not functioning
properly
"Polarity" LED is lit
--Polarity signals on twisted pair
receive circuit are reversed
"Jabber" LED is lit
--10BaseT adapter card is
malfunctioning
--AUI cabling is wired incorrectly
APPENDIX D. - SPECIFICATIONS
Standard:
IEEE 802.3 compliant
Connectors:
DB-15 male on AUI port, RJ-45 jack on
10BaseT twisted pair port
LEDs: Power On
Red
Link
Yellow
Polarity
Red
Collision
Red
Receive
Green
Transmit
Green
Jabber
Green
Link Parameters:
Duration between transmit link pulses: 8ms(min) / 24ms(max)
Duration between receive link pulses: 3ms(min) / 105ms(max)
Collision Parameters:
Collision signal ON/OFF delay (CI+/-): 900ns(max)
Collision to end of AUI loopback ON (DI+/-): 800ns(max)
Start of AUI loopback to end of collision: 100ns(max)
Collision Parameters:
Jabbering node isolated from network if jabber surpasses a 26ms
transmit time. The jabber function will inhibit transmission (except
for link pulses), discontinue AUI loopback, and send a collision
signal on the AUI CI+/- circuit.
Power Supply:
None required. Uses power from AUI data
signals
Temperature Range:
0-60 degrees C (32-140 degrees F)
Altitude:
0-15,000 feet
Humidity:
5 to 95% noncondensing
Dimensions:
2.25"L x 1.69"H x 0.75"W
Weight:
1.5 oz.
5
6
