Enterasys sbu128 Betriebsanweisung
SBU128
User Manual
80-10200000-01
3–2
ISDN BRI
Command
(X.21)
Link
User
User
(V.35)
Link
10 BASE-T
ISDN BRI
Command
10 BASE-T
Figure 3.2 SBU128 Rear panels
3.1 Front Panel Description
shows the front panel of your SBU128, which has the
following:-
•
signal LEDs for each of the User interface circuits
•
a non-latching, push-button switch for manual backup operation.
•
Talkwire and ALERT LEDs
•
status LEDs for the ISDN channels
•
a User port “Connected” LED
•
a unit status and power LEDs.