Provisioning HDSL2 for General Distribution Installation and Maintenance Practice
10 61223HDSL2L2-5B
Total Access 3000 H2TU-C Edge Connector
The Total Access 3000 shelf delivers DSX-1 from the network to the H2TU-C via connectors on
the backplane labeled
Pair 7 and Pair 8. The HDSL2 signal is provided toward the customer via
the backplane connector labeled
Pair 2. Pins 1 and 33 of the connectors Pair 7 and Pair 8 are
the DSX connections for the H2TU-C in slot 1. Pins 2 and 34 of these connectors are
associated with slot 2. Pins 3 and 35 are associated with slot 3, and so forth, up to pins 28
and 60 for slot 28.
Figure 6. HDSL2 Edge Connector Wiring, continued
PROVISIONING
HDSL2 Configuration is performed via software control. For more information, refer to
“Control Port Operation” on page 17. The provisioning settings can be viewed and manipu-
lated through access to the firmware via the front panel RS-232 port. Table 6 lists the
available provisioning options and their factory default settings.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
P2, Row A P2, Row B P2, Row C
- 48 volt return
Interrupt Request
MUX B Receive Data
MUX A Receive Clock
MUX A Receive Data
Chassis ground
Chassis ground
SCU Control Lead
Fuse alarm
Interrupt Request Select
MUX B Transmit Clock
MUX A Transmit Clock
Test access bus Loop ring
Test access bus Loop tip
Receive DSX-1 Ring backup connection
Transmit DSX-1 Ring backup connection
Receive DSX-1 Ring normal connection
Transmit DSX-1 Ring normal connection
- 48 volt return
- 48 volt DC A
- 48 volt DC A
HDSL2 Loop Ring (facility)
HDSL2 Loop Tip (facility)
SCU Control Lead
SCU Control Lead
SCU Serial Interface
MUX B Transmit Data
MUX B Receive Clock
MUX A Transmit Data
Receive DSX-1 Tip backup connection
Transmit DSX-1 Tip backup connection
Receive DSX-1 Tip normal connection
Transmit DSX-1 Tip normal connection
- 48 volt DC B
- 48 volt DC B
Total Access 3000
H2TU-C Edge Connector Wiring
