User`s guide

Section 360−381−C02
8
4.2.1. Retrieve and Set Secondary T1 Parameters
The Secondary T1 Parameter Menu, as shown in Figure 7, allows you to specify each option.
Figure 7. Secondary T1 Parameter Menu
Parameter Option Description
Frame Format SF Superframe format
ESF Extended Superframe format
Line Code AMI Alternate mark inversion
B8ZS Bipolar 8 zero suppression
LBO (Line
B ild O t)
Short Haul: 0−660 ft. Pre-equalization of signal for line length
Build-Out)
Long Haul: 0 to 22.5 dB Receive gain control for line attenuation
Remote Control
Method
None No communication to remote unit
Method
(to
r
e
m
ote
I
C
B
)
Occupy One Channel One channel is used for remote communication
(to remote ICB)
Facility Data Links Communication is over FDL (ESF mode only)
Loopback State Display only. If the unit is in loopback, shows LPBK. Otherwise, shows NORMAL
Bypass Mode Auto Bypass T1 bypass on alarm or loss of ICB power
Forced No Bypass No T1 bypass
Bypass No Force no T1 bypass
Yes Force T1 bypass
Apply New
Settings
Select to apply changes made in this menu.
4.3 Audible Alarm Cut-Off
This cancels any current audible alarm. Use the arrow keys to move the cursor to this menu item and press <En-
ter> to stop the alarm.