DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-664DS1 CONV-BD
9
Administration steps for a Standard Reliability and 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
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 120
Ω
for twisted-pair
or 75
Ω
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.
DS1 CONV LEDs
The TN574 board has seven LEDs on its faceplate. The TN1654 board has
eleven LEDs on its faceplate. The top three system standard LEDs are used to
provide an indication of the state of the DS1 CONV board. These LEDs are under
