Adtran L768 Manuel D’Utilisation
61202192L1-1
Express L768/L1.5 User Manual
1
Quick Startup Guide
SETTING UP THE HDSL LINE
The Express L768/L1.5 works over leased or “dry” copper provided by the lo-
cal telephone company. See
cal telephone company. See
Chapter 4
on page 87 for specifications on maxi-
mum distance. If the Express L768/L1.5 is to be used in a back-to-back
configuration, the line mode must be different for each unit.
configuration, the line mode must be different for each unit.
1.
Connect a VT 100 async terminal, or personal computer with a terminal
emulator running 9600 N-8-1, to the
emulator running 9600 N-8-1, to the
MAINTENANCE
port.
2.
Hold down the
Control
key and press
R
; then press
Enter
to display the
top menu.
3.
Using the arrow keys and
Enter
key to navigate the menu, go to the
Con-
figuration/WAN/HDSL
menu. Enter the line mode as HTU-C or HTU-R.
Each end of an HDSL circuit must be of opposite modes.
4.
Set the rate of transfer that will be used. Both devices must be set at the
same rate.
same rate.
5.
Use the left arrow key or the
Escape
key to go back up the menu tree.
When asked to save HDSL parameters, type
y
.
6.
Connect the HDSL line to the RJ-45 jack labeled
HDSL
on the rear panel.
See
Appendix D
on page 103 for connector pinouts.
7.
When the Loop LED(s) remain solid, the Express L768/L1.5 is in synchro-
nization.
nization.
8.
On the Express L768, the Link LED will illuminate to indicate that PPP has
successfully negotiated.
successfully negotiated.