Overview; Features - ADC HiGain HTC-439 List 2 Test Card User Manual

150-439-102-02, Issue 2
O
VERVIEW

The ADC HiGain
method of testing Central Office (CO) and Field Tip and Ring transmit and
receive pairs from any standard T1-239 repeater slot.
The width of the HTC-439 List 2 has been reduced from the List 1 unit so that
the List 2 fits a four-slot HRE-504 enclosure without interfering with plugs
above or below it.
F
EATURES
•
Four-position slider switch (S1) that allows you to select tests on the
transmit (XMT) and receive (RCV) Tip and Ring pairs on CO and field
circuits:
– Open
–
Short
–
Loop Thru
–
Loop Back (metallic)
•
Test points that provide access to Tip and Ring circuits (CO and field)
and to frame ground.
• Miniature 210 jacks located within the J1 block that provide access to CO
and field Tip and Ring circuit sides.
•
Designed to extend beyond the front plane of the shelf or enclosure into
which the HTC-439 List 2 is inserted to permit easy access to its test
points.
•
Compatible with all ADC enclosures that support T1-239 mechanics.
HTC-439 List 2

Test Card HTC-439 List 2 provides a convenient
November 12, 1999

Overview

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