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Provisioning LTPH-UM-1049-02, Issue 2
28 January 9, 2002 H2TU-C-319 List 4E
Test Access
The H2TU-C’s PC board’s card-edge connector, shown in Figure 33 on page 68, has three separate segments
labeled S1 (segment 1), S2 (segment 2), and S3 (segment 3). S3 contains the standard 3192 pin connections. The
two extra segments, S1 and S2, have pin connections that support additional features called Dual DSX-1 port
option and Metallic Test Access (MTA), respectively, as shown in Figure 9 below through Figure 12 on page 30.
Figure 9. Metallic Test Access Block Diagram
Test Facilities
HMS-358
Backplane
Cable
test
set
Test
center
DACS
or
MUX
or
DSX-1
MUX DSX-1
Golden
H2TU-C
319
Golden
H2TU-R
Unit
HDSL2
Wire
Line
Simulator
or
Test
Pair
TB6
TB6
H2TU-C-319 (UUT)
OUT
MTAE
MTAF
HDSL2
Span
R
R
T
T
S3
S3
S2
S2
Cable
pair
H
2
T
U
R
K1
K2
1
14
A
31
R
R
T
T
32
2
9
B
K
Framer
HDSL2
Xceiver
13
IN