Switches
3
Switches
Two BNC ports on the AT-MR125D have two terminating switches for selecting
or deselecting the internal 50
Ω
termination function for the thinnet connection.
The factory default of the 50
Ω
terminator switch is the ON setting. No
external BNC-T and 50
Ω
terminator are required when this switch is
enabled.
Indicators
The following diagnostic indicators are common to the micro repeaters. These
indicators are shown in Figure 3.
Power
—Indicates the external source providing power to the micro repeater.
On Line
—This indicator is lit when the port is ready for operation and is not
partitioned.
Collision
—Indicates a collision detected on that port.
Receive
—This indicator will flash whenever a packet is received on that port.
Brief flashes indicate low traffic levels.
Transmit
—Indicates micro repeater transmitting a packet out of that port.
Figure 3: AT-MR125D Indicators
Troubleshooting
Power LED is lit but no packets are getting through (no network
connections across the repeater)
1.
Check to see if the port is receiving or transmitting packets by checking the
Receive and Transmit indicators.
2.
Check port connections and wiring. Check the termination switch on a
10BASE2 segment.
Note
POWER
MR125D
IEEE 802.3 MICRO REPEATER
PORT 1: 10 BASE 2
ON LINE
COLLISION
TRANSMIT
RECEIVE
ON LINE
TRANSMIT
RECEIVE
PORT 2: 10 BASE 2
COLLISION
MR125DBook Page 3 Wednesday, August 21, 1996 4:24 PM
