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Primary Rate Interface equipment: overview
553-2901-200 Standard 11.00 August 1996
Refer to
ISDN Primary Rate Interface description and administration
(553-2901-100) for hardware vintage requirements and compatibilities, as
well as packaging information.
Note:
Either the QPC757 DCHI, the NT6D80 MSDL, or the QPC720
PRI can be installed first. However, PRI loops must be configured in
software before defining DCHI links.
The following hardware is required for PRI capability and applications:
— QPC414 network card
Refer to
Circuit card installation and testing
(553-3001-211)
— Channel Service Unit (CSU)
Refer to information received from manufacturer
— ROM and memory, as shown in
See also
Software conversion procedures
(553-2001-320)
The NT and RT can use one QPC583A board while the XT can use up to three
QPC583A boards. X11 release 15 and later software requires at least two
QPC583A boards in XT machines. Systems with less than 420K data storage
require an additional memory board.
Table 1
Minimum ROM requirements by machine type and X11 release
X11
release
ST, 21
STE,
21E
RT
NT, 51,
61
XT, 71
81
51C
61C
81C
14
QPC717D
or
QPC937
N/A
QPC602
QPC602
QPC602
N/A
15/16/1
7
QPC940
N/A
QPC939A
QPC939
QPC939
N/A
18
N/A
NTND31
NTND08
NTND08
NTND08
21