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DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance for csi systems
1-12csi design
1
— Four administerable netcon channels are accessible through the
TN798 processor and can be used for such asynchronous adjuncts
as the G3 Management Terminals (SAT), Terranova family of
Windows-based applications, BCMS terminals, BCMS VU, system
printers, PMS links, and CDR devices.
— The TN798 has separate RS232 ports for the external modem and
CDR port.
■ The AC Power Supply Unit (650A) provides:
— Multiple DC outputs: ± 5.1 VDC, -48 VDC, +8-14 VDC (fan speed
control), and -150 to -115 VDC (Neon bus).
— Three switch-selectable AC ring outputs: 85 VAC @ 20 Hz (North
America), 72 VAC @ 25 Hz (international), and two 28 VAC @ 50 Hz
(France).
— For LED indicators and interpretation, see ‘‘Power Supply LEDs’’ on
page 1-90.
■ There is no battery backup in this switch. If power is interrupted for more
than 50 milliseconds, all calls are dropped and memory is lost. The only
remedy for maintaining service without interruptions is to have a dedicated
uninterruptable power supply (UPS) between the AC source and the
switch.
■ The system does not support either High or Critical Reliability duplication
or expansion options.
■ The maximum configuration is 3 cabinets (A-C) and a total of 28 slots (2
slots are reserved for the processor and tone clock circuit packs).
■ The csi uses an external modem for alarm reporting to INADS and remote
access, rather than the built-in modem on the processor circuit pack. The
U. S. Robotics Model 839 Sportster 33.6 Fax Modem is the external
modem recommended for use with csi. This modem has a slightly different
initialization string from other modems used with other DEFINITY products.
Refer to the
‘‘change system-parameters maintenance’’
section in
Chapter
2, ‘‘Maintenance Commands’’ for administration and initialization details.