Table of Contents
Advertisement
Switch
Function
S1-1 ............ Framing Format
S1-3 ............ TR-08 Signaling
S1-2 ............ Line Code Format ..... Enables Bipolar Eight-Zero Substitution (B8ZS) which allows for Clear Channel
S1-4 ............ CSU Loopback ......... Enables the CSU Loopback Function. Unit will respond to CSU loopback sent from a
Timing Mode ............ Determines clock source for TA 750.
S1-5 ............ Timing A
S1-6 ............ Timing B
DS1 Attenuation........Selects attenuation to set receiver sensitivity in decibels (dB).
S1-7 ............ LBO A
S1-8 ............ LBO B
* Denotes factory default settings.
CAUTION
The BCU retains provisioning setup when
removed from the chassis. If inserted into
another chassis, the provisioning setup is
invoked on that chassis' access modules.
PASSWORD
Upon initial connection, the password option is
factory disabled. To enable the password, select Bank
Control (8) Enable Password (2). The factory default
is PASSWORD in all capital letters. The password
can be changed to a user-selected password if desired.
61175012L2-5D
Table 2. DIP Switch S1 Options
Description
S1-1 S1-3 Setting
Off
Off
ESF*
On
Off
SF
Off
On
TR-08 Digroup A
On
On
TR-08 Digroup B, C, or D
operation for the T1 carrier system, or Alternate Mark Inversion (AMI). This option
must be configured identically with all other T1 network equipment on this circuit.
On ............... AMI
Off * ............B8ZS
remote network device or test equipment.
Off * ............Enabled
On ............... Disabled
S1-5
S1-6
Function
Off *
Off *
Loop timing: Derives timing from T1
On
Off
External timing: Derives timing from external BITS clock
Off
On
Local timing: Clock generated from internal timing source
On
On
Loop timing: Derives timing from T1
S1-7
S1-8
Setting
Off *
Off *
0 dB / 0-133 ft (LBO)
On
Off
-7.5 dB
Off
On
-15 dB
On
On
-22.5 dB
(Note: additional LBO settings can be provisioned through the menu interface.)
Section 61175012L2-5, Issue 4
If the password is enabled, after approximately eight
minutes of keyboard inactivity, the terminal times out
and returns to the password login screen.
MENU NAVIGATION
To traverse through the menus, select the desired entry
and press ENTER. To work backwards in the menu
press the ESC (escape) key.
TIME SLOT ASSIGNMENT (FRACTIONAL T1)
To change the number of time slots allocated to the
Fractional T1 (DSX-1) port, perform the following:
3
Advertisement
Table of Contents
