ADTRAN ISU 512 - Manual (Page 7)

Quick Start Guide
Before configuring the ISU TM 512, the telephone service provider must supply
the switch type, service profile identifier (SPID), and local directory number
(LDN). For example, for one ISDN BRI 2B+D line:
Switch Type National ISDN-1
SPID1 20455512120100
SPID2 20455512130100
LDN1 5551212
LDN2 5551213
To configure the ISU 512 from the front panel press Enter from the initial sta-
tus screen and continue entering the appropriate numbers until the Switch
type, SPIDs and LDNs have been entered. (Note: Outside the U.S. and Canada,
you will not need to enter SPIDs.)
1=AT&T 5ESS
2=DMS-100
1=Switch type 3=NATIONAL ISDN1
1=Netw. options 1=Dial Line 2=Call type 4=NEC
3=CONFIG 2=DTE options 2=Leased Line 3=Terminal ID 5=EuroISDN
3=BONDING setup 4=Dial options 1=Set SPID
4=Quick setup 5=Auto answer 2=Set LDN
6=Connect Timout
7=Call Screening
8=Passwords
9=Maint Setup