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December 20, 2004 Chapter 1: Product Description
LTPH-UM-1261-01 1-9
Figure 1-5. HLU Slot Wire-wrap Pinouts for HDSL Circuits
Figure 1-6. HLU Slot Wire-wrap Pinouts for HDSL2 Circuits
DSX-1 Tip (IN)
DSX-1 Tip 1 (OUT) DSX-1 Ring (OUT)
A
B
C
D
E
F
J
H
Error Alarm Bus Ground (GND)
HDSL Loop 1 - Tip
Management Bus*
Frame Ground -48 Vdc Battery
HDSL Loop 2 - Tip HDSL Loop 2 - Ring
FL (not used) Fuse Alarm **
1
2
3
4
5
6
7
8
9
10
K
L
**
Fuse alarm is normally floating (0 to -80V maximum) and at -48V
(
10 ma maximum
)
when activated
*
Minor alarm output is normally floating (0 to -60V maximum) and a
ground (10 ma maximum, +5 Vdc for HLU-319 List 2D) when activated
Notes:
System Alarm*
DSX-1 Tip (IN)
DSX-1 Tip 1 (OUT) DSX-1 Ring (OUT)
A
B
C
D
E
F
J
H
Error Alarm Bus Ground (GND)
HDSL Loop 1 Span Tip
Management Bus*
Frame Ground -48 Vdc Battery
HDSL2 Loop 2 - Tip*** HDSL2 Loop 2 - Ring***
Factory Use Only Fuse Alarm **
1
2
3
4
5
6
7
8
9
10
K
L
**
Fuse alarm is normally floating (0 to -80V maximum) and at -48V
(10 ma maximum) when activated
*
Minor alarm output is normally floating (0 to -60V maximum) and a
ground (10 ma maximum, +5 Vdc for HLU-319 List 2D) when activated
Notes:
System Alarm*
***
Loo
p
2 is used on H2TU-C-319-L7FX line of cards