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1
2
3
4
5
6
7
8
Figure 5. Customer (RJ-48C/RJ-48X) Connector
Pin Assignments
P6
HDSL R1
SLOT 1
1
HDSL R1
SLOT 2
2
HDSL R1
SLOT 3
3
HDSL R1
SLOT 4
4
N/C
5
N/C
6
N/C
7
N/C
8
N/C
9
N/C
10
N/C
11
N/C
12
N/C
13
HDSL
R
SLOT 1
14
HDSL
R
SLOT 2
15
HDSL
R
SLOT 3
16
HDSL
R
SLOT 4
17
N/C
18
N/C
19
N/C
20
N/C
21
N/C
22
N/C
23
N/C
24
N/C
25
HDSL
T 1
SLOT 1
26
HDSL
T 1
SLOT 2
27
HDSL
T 1
SLOT 3
28
HDSL
T 1
SLOT 4
29
N/C
30
N/C
31
N/C
32
N/C
33
N/C
34
N/C
35
N/C
36
N/C
37
N/C
38
HDSL
T
SLOT 1
39
HDSL
T
SLOT 2
40
HDSL
T
SLOT 3
41
HDSL
T
SLOT 4
42
N/C
43
N/C
44
N/C
45
N/C
46
N/C
47
N/C
48
N/C
49
N/C
50
Figure 6. Network Interface (P6) Connector Pin
Assignments
4
R1
Blue
T1
Orange
N/C
R
Red
T
Green
N/C
N/C
N/C
}
T1, R1
}
HDSL LOOP 1
TO/FROM
NETWORK
}
}
}
T, R
}
HDSL LOOP 2
TO/FROM
NETWORK
61242008L1-5, Issue 2
T1-DS1 OUTPUT TO CUSTOMER
5
T1- HDSL LOOP 1
7
FRAME GROUND
11
R1-HDSL LOOP 1
13
R1-DS1 OUTPUT TO CUSTOMER
15
-48V RETURN
17
FRAME GROUND
27
-48 VOLTS
35
T-HDSL LOOP 2
41
R-HDSL LOOP 2
47
R-DS1 INPUT FROM CUSTOMER
49
T-DS1 INPUT FROM CUSTOMER
55
Figure 7. Backplane Slot Pin Assignments
Figure 5 shows the customer connector pin
assignments and Figure 6 shows the network
interfaces (HDSL loops) P6 connector pin
assignments.
Pin assignments for the backplane HTU-R slots are
shown in Figure 7.
Frame Ground Connection
Attach frame ground to pin 1 of P5 (see Figure 2).
Power Connections
In applications using locally powered T400 plug-in
cards, local power can be supplied to these cards using
the barrier strip labeled P5. For applications using
only ADTRAN line-powered HTU-R cards, -48 V
connections are not required. However, the frame
connection (pin 1 of P5) must be attached to ensure
proper grounding and unit operation (see Figure 2).
CAUTION
Ensure all power connections are firmly
secured.
Customer Connections
Figure 5 gives the pin assignments and lead colors of
the four RJ-48 jacks. These connectors provide all
customer-side connections. Alternately, the signals
may be cabled directly to the terminal barrier strips.
Network Connections
Figure 6 provides the pin assignments of P6 (labeled
NETWORK INTERFACE). This 50-pin CHAMP
connector provides all network-side connections. The
61242008L1-5B
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