Avaya S8700 Maintenance Manual page 1409

DS1 CONV-BD
Administration steps for a duplex-, or high-reliability system (no PNC duplication)
are as follows:
1. Administer carriers via the add/change cabinet command.
2. Administer circuit packs via the change circuit-pack command.
3. Administer connectivity and the facility options of the DS1 CONV complex
via the add/change fiber-link command.
Administration steps for a critical-reliability system (PNC duplication) are as
follows:
1. Enable PNC duplication feature using the change system-parameter
customer-option command.
2. Administer carriers via the add/change cabinet command.
3. Administer circuit packs via the change circuit-pack command.
4. Administer connectivity and the DS1 facility options of each DS1 CONV
complex via the add/change fiber-link command.
5. Turn on PNC duplication via the change system-parameter duplication
command.
TN1654 Board Configuration Switch Settings
The TN1654 DS1 CONV circuit pack is field configurable for T1 or E1 operation so
that a single board serves worldwide application. All four DS1 facilities are
configured to either T1 or E1 as a group via an option switch located on the
component side of the circuit pack. If T1 operation is selected, four additional
switches are used to select the framing mode for each facility. Each facility can be
set to either D4 or ESF framing. If E1 operation is selected, the same four
switches are used to select the E1 facility line termination impedance. The E1 line
termination impedance for each facility can be set to either 120Ω for twisted-pair
or 75Ω for coaxial wiring.
T1 or E1 operation must also be administered for the TN1654 DS1 CONV board
on the fiber-link form via the Bit Rate field. An error will be logged and an
alarm will be raised if there is a T1/E1 inconsistency between the administered bit
rate and the board option switch setting.
The T1 facility framing mode and the E1 facility line termination impedance are
defined by the option switch settings only. Administration of these values is not
allowed. The fiber-link form will display the selected option switch settings for
each facility.
555-233-143 Issue 1 May 2002 8-687