Appendix A - Specifications152-402-145-02, Issue 2

LOOP ATTENUATION

Each loop has no more than 35 dB of loss at 196 kHz, with driving and terminating impedances of 135Ω (see Table 13 below).

Table 13. 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

 

 

 

H2TU-R-402 LIST 4E CARD CONNECTOR

Figure 23 shows the card-edge connectors on the H2TU-R-402 List 4E. Active pins are highlighted in black.

56 55 Tip

54

53

DS1 IN

52

51

 

50 49 Ring

48 47

4645

44 43

42 41

Automatic protection switch power

40

39

 

Factory use only

38

37

Factory use only

36 35 − 48V

34 33

32 31

30 29

 

28

27

Chassis Ground*

 

 

26

25

 

 

 

24

23

 

 

 

22

21

 

 

Factory use only

20

19

 

 

 

18

17

Circuit Ground

 

 

16

15

Ring 1

 

 

14

13

Ring

HDSL2

Automatic protection switch control

12

11

 

 

DS1 OUT

 

10

9

 

 

 

Span

 

8

7

Tip

 

 

 

6

5

Tip 1

 

 

4

3

 

 

 

2

1 Chassis Ground*

 

Active pins are highlighted in black.

*Chassis Ground may be tied to Earth Ground according to local practice.

Figure 23. H2TU-R-402 List 4E Card-Edge Connector

32

June 16, 2000

H2TU-R-402