nit

northern

ttdocom

PRACTICE 553-2201-193
Issued: 87 08 31
Standard
INTEGRATED SERVICES NETWORK

MERIDIAN

SL-I..

QPC578 INTEGRATED SERVICES DIGITAL
LlNE
CARD
DESCRIPTION
CONTENTS
PAGE
1.
QPC578 INTEGRATED SERVICES DIGITAL LINE
CARD . . l-l
Description
:..
l-1
Functions
.._.........
l-2
Reason for Reissue: This practice is reissued to add further
reference information on digital telephones. Changes are indicated by
arrows in the margin.
Pm,cd
Iā€
CSA
ā€™
Northern
Telecom
Limited 1985
Page i
1 Page