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Chapter 3: Terminal Menu Operation and Structure
36
Express L128/L128T User Manual
61202.070L1-1
Configuration/WAN
The WAN menu is used to set up the ISDN parameters for the Express L128/
L128T.  Also, for the Express L128T, a POTS menu is provided.  Figure 3-3 
shows the WAN menu.
You can run the L128/L128T with Frame Relay if you obtain the appropriate firm-
ware. See Appendix F
 on page 149 for information.
Figure 3-3
Configuration/WAN Screen
WAN/ISDN
Write security: 2; Read security: 5
Selects the mode the ISDN line is in.  If connecting to the public network, select 
Dial 
(def).  If  connecting to a leased wire for back-to-back operation, select 
Leased
.
ISDN/Dial Line
Dial Line parameters are entered under this menu. 
Dial Line/ExpertISDN
Write security: 2; Read security: 5
The ExpertISDN option allows automatic determination of Service Profile 
Identifier (SPID) 1 and SPID 2 with entry of the Local Directory Number(s)