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SWITCH
LABEL
SW1-1
B1
SW1-2
B2
SW1-3
D
SW 1-4
On
ZBS DIS
Off
ZBS EN
SW 2-1
On
LULT(RT)
Off
LUNT(COT)
SW 2-2
On
ADJ
Off
TANDEM
On
ADJ
Off
TANDEM
SW6*
NORM
POWER
Note: Power option should only be used in the LULT
(RT) configuration
* Applies to the DE-4 U-BR1TE II w/PWR, L4
CAUTION: Do not use the power option (SW6 – POWER) unless this product is connected to an ISDN repeater, or
IDSL OCU-R that is not locally powered.
4
Table B. SW1, SW2, and SW6 Option Settings
FUNCTION
Service Level Selection
Zero Byte Substitution
Disables ZBS
Enables ZBS
Termination Mode
LULT mode (RT typical)
LUNT mode (COT typical)
Function dependent upon SW2-1 setting in non-powering configuration.
Function is not applicable in powering configuration (SW6 to Power).
LULT Mode (SW2-1 On )
DC sealing current provided
DC sealing current not provided
LUNT Mode (SW2-1 Off )
Periodic wake-up tone not provided
Periodic wake-up tone provided
Normal
Powering provided toward the
customer U-interface.
Section 61410020L2-5, Issue 3
DESCRIPTION
Selects the service level. The DE-4 U-BR1TE II may be
optioned to deliver full ISDN (2B+D) or any other level of
service.
Service Option
2B+D ............................. On ........... On ............. On
2B ................................. On ........... On ............. Off
B1+D ............................. On ........... Off ............. On
B2+D ............................. Off ........... On ............. On
B1 ................................. On ........... Off ............. Off
B2 ................................. Off ........... On ............. Off
D ................................... Off ........... Off ............. On
The ZBS option must be set the same for the COT and RT.
SW1-4 should be set toward "ZBS EN" for AMI-provisioned
carriers. The switch setting is optional for B8ZS-provisioned
carriers. Consult local provisioning guidelines.
This switch should be set toward "LULT" when the unit is
installed as Adjacent-to U-Repeater, Adjacent-to-Customer,
or Tandem Office Source configuration. This switch should
be set toward "LUNT" for Adjacent-to-Switch and Tandem
Office Sink configurations.
In the LULT(RT) mode, SW2-2 controls sealing current.
When used in an Adjacent-to-Customer configuration, sealing
current should be provided (SW2-2 On ). In a Tandem Office
Source, sealing current is not required, and should be disabled
(SW2-2 Off ).
In the LUNT(COT) mode, SW2-2 controls periodic wake-up
tone. Periodic wake-up tones should be disabled when
located in an Adjacent-to-Switch location (SW2-2 On ). Periodic
wake-up tones are required (SW2-2 Off ) when located in a
Tandem Office Sink configuration, or when adjacent to a
device requiring wake-up tones, such as a Newbridge
No powering provided toward the customer U-interface.
Automatically determines which of the following modes of
operation is appropriate:
• Supply a constant 43 mA to power an ADTRAN ISDN
U-Repeater II or U-Repeater III.
SW1-1
SW1-2
SW1-3
B1
B2
D
®
switch.
61410020L2-5C
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