Cabletron Systems NB20E - Manual (Page 25)

INSTALLING THE NB20E OR NB25E BRIDGE
3-5
Figure 3-4 Bridge Front Panel
3.2.5 Connecting The NB20E or NB25E To The Power
Source
When installation of the NB20E/NB25E Bridge is complete and the
switches have been set, connect the bridge to the power source in the
following manner:
1. If you have not already done so, plug the power cord (7, Fig. 3-3) into
the power receptacle (6) located on the rear panel of the bridge.
2. Plug the power cord into a wall receptacle.
3. Turn the power switch, located next to the power receptacle, to the on
position.
4. Observe the status of the ON-LINE, STANDBY, PORT 1 OK and
PORT 2 OK LEDs. These LEDs will flash for approximately 10
seconds as the bridge performs it's internal diagnostics.
When the bridge finishes its internal diagnostics, the LEDs should be
in the following conditions:
• ON LINE LED lit, indicating that the bridge is receiving power.
• PORT 1 OK and PORT 2 OK lit, indicating that the ports have
passed the internal loopback test and are now ready for
transmission.
• STANDBY on or off, depending on the bridge's position in the
Spanning Tree Algorithim.
NB-25E
ETHERNET /IEEE 802.3 BRIDGING UNIT
WITH REMOTE LANVIEW® AND MANAGEMENT
XMT
RCV
CP
POK
PORT 1 2
1
1
0
0
ON LINE
STAND BY
FORWARD
BROADCAST
ROOT