ADC 150-2450-55, Technical Practice

Page: 43 / 52

LTPH-TP-1047-01, Issue 1 Appendix A - Specifications
H2TU-R-402 List 5E March 12, 2001 35
L
OOP
A
TTENUATION
Each loop has no more than 35 dB of loss at 196 kHz, with driving and terminating impedances of 135
Ω
(see
Table 15 ).
H2TU-R-402 L
IST
5E C
ARD
-E
DGE
C
ONNECTOR
Figure 25 shows the card-edge connectors on the H2TU-R-402 List 5E. Active pins are highlighted in black.
Figure 25. H2TU-R-402 List 5E Card-Edge Connector
Table 15. HDSL2 Cable Attenuation Chart
Cable Gauge Loss at 196 kHz (dB/kft)
Ω
per kft
26/0.4 mm 3.88 83
24/0.51 mm 2.84 52
22/0.61 mm 2.18 32
19/0.91 mm 1.54 16
27
25
23
21
19
17
15
13
11
9
7
3
5
1
Tip
Ring
Factory use only
Factory use only
Factory use only
Ring 1
Circuit Ground
Ring
DS1 IN
Tip
Tip 1
Chassis Ground*
Chassis Ground*
28
26
24
22
20
18
16
14
12
10
8
4
6
2
55
53
51
49
47
45
43
41
39
37
35
32 31
56
54
52
50
48
46
44
42
40
38
36
34
30
33
29
Active pins are highlighted in black.
* Chassis Ground may be tied to Earth Ground according
to local practice.
HDSL2
Span
−
48V
Automatic protection switch power
Automatic protection switch control