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Card-edge connector
56
55
Tip
54
53
52
51
50
49
Ring
48
47
Do not use
46
45
44
43
42
41
Do not use
40
39
APS
38
37
Factory use only
Factory use only
36
35
-48V (local power)
34
33
32
31
30
29
28
27
Chassis Ground*
26
25
24
23
22
21
Factory use only
20
19
18
17
-48V Return (local power)
16
15
Ring 1
Ring
14
13
APSP
12
11
10
9
Tip
8
7
6
5
Tip 1
4
3
2
1
Chassis GND
* Chassis Ground may be tied to Earth Ground according to local practice.
DS1 IN
Note:No battery connection for remote power.
HDSL2
DS1 OUT
Span
CLEI/ECI bar code label
List number
Indicates the list number of the H2TU-R-402.
H
L
2
DSL Status LED
DSL
T
.
U
ALM LED
R
ALM
DS1 LED
4
DS1
0
2
Framing LED
ESF/SF
Line code LED
B8ZS/AMI
YEL/GRN
D
RLB/LLB
S
Loopback LED
1
LLB
LBK
RLB
DS1 input (OUT) and output (IN) monitor (MON) jacks
IN
MON
OUT
RS-232
DCE
Craft port provisioning
Extraction handle
H0030-B
Loopback control pushbuttons
Press the pushbutton for 5 seconds to activate a dual loopback
at the network (RLB) or at the customer (LLB).
Any existing loopback is terminated before these loopbacks
are activated.
The unit can be looped down by pressing either
control pushbutton again for 5 seconds, by the standard
loopdown inband messages, or by the maintenance terminal.
Provides non-intrusive access monitor to the DS1 signal
received from (IN) and transmitted to (OUT) the Customer
Premises Equipment (CPE). Allows testing of the HDSL2 system.
To access all system maintenance, provisioning,
and performance screens, connect a standard
9-pin terminal cable between the serial port on a
PC and the H2TU-R craft port.
Maintenance Terminal Modem Settings
9600 baud
Use to remove the
8 data bits
H2TU-R-402 from
No parity
its slot.
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
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