AT&T 202C Test Procedure

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BELL SYSTEM PRACTICES
AT&TCo Standard
SECTION 592-015-500
Issue 3, February 1976
DATA SET 202C-TYPE
TRANSMITTER-RECEIVER
TEST PROCEDURES
CONTENTS
PAGE
1. GENERAL
2. INSTALLATION TEST PROCEDURE
Loop-Back Test 2
3. MAINTENANCE TEST PROCEDURES 2
A. Voltage Interface Test
2
B. Contact Interface Test
4
4. SUPPLEMENTARY TEST PROCEDURES 5
A. End-to-End Test
5
B. Ground Noise Test
8
5. REFERENCES
9
1. GENERAL
1.01
This section contains procedures to be used
when testing data set (DS) 202C-type on an
initial installation or during a maintenance visit.
1.02
This section is reissued to provide the
following:
(a) Information on the use of an Automatic
Data Test System (ADTS) with data set
202C-type.
(b) Procedures for using the 6H impulse counter
instead of the 6A for the ground noise test.
Since this reissue is a general revision, arrows
normally used to indicate changes have been omitted.
1.03
Before proceeding with any tests of the
data set, verify that:
(a) For switched network applications, the data
loop meets requirements specified in Section
314-205-501.
(b) For private line applications, the data loop
meets requirements specified in Section
314-410-500.
(c) Telephone portion of the installation meets
standard de talk, signaling, and supervision
requirements.
(d) Data set strapping options agree with service
order.
Take necessary steps
to
ensure customer
is not billed for test calls. Refer to
the section entitled Crediting Charges
on Test Calls (01()..25()..001). :
1.04
Tests contained in this section are divided
into three parts. Part 2 describes the test
required to verify an installation. Part 3 describes
the tests to be performed during a maintenance
visit. Part 4 describes additional tests that ordinarily
are not required during installation and maintenance
visits.
2. INSTALLATION TEST PROCEDURE
2.01
The loop-back test in this part should be
performed immediately after the data set
has been installed to ensure that the installation
is ready to
be
placed in service.
If
the data set
fails to meet test requirements, replace the data
set. The telephone company (telco) employee should
also assure that data can be transmitted and/or
received using the customer provided equipment
NOTICE
Not for use or disclosure outside the
Bell System except under written agreement
Printed in U.S.A.
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