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Chapter 4: Operation
22 ISU 512 User Manual 61202.086L1-1
3. Choose an item on the submenu such asNetwork Options (Netw. options)
by pressing the corresponding number followed by Enter.
4. To select Dial Line options, press 1, then press Enter.
The menu path follows:
3=CONFIG
1=Netw. options
1=Dial Line
4=Dial Options
It is important to note that some features in the ISU 512 do not immediately
take effect upon selection. This prevents unintentional reconfiguration of the
ISU 512 during an active call. Items such as Leased/Dial line, SPID/LDN, and
ISDN switch type, take effect only when the ISU 512 is powered up or the Ba-
sic Rate interface is bounced (line broken and restored). Also, items such as
Bit Rate, BONDING setup, and Call type take effect only at the beginning of
a new call.
FRONT PANEL
Figure 4-3 shows the ISU 512 front panel.
Figure 4-3
ISU 512 Front View
The ISU 512 front panel consists of a 2-line, 16-character LCD display, seven
LED indicators, and a 16-button keypad. This allows for configuring, dialing,
testing, and monitoring the unit without data terminal or test equipment.
SHIFT
*
7
D
4
A
1
8
0
E
5
B
2
QUICK
ISU 512
#
9
F
6
C
3
ENTER
CANCEL