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Installing the BNC Panel
6
From the rear of the panel, connect the coax end of an ADC adapter cable to the DS3 OUT (transmit).
connector. The connector number must match the connector number on the front of the panel.
7
Connect the wire-wrap conversion block end of the same ADC adapter cable to the T and R EQUIP wire-wrap
posts on the back of the LEC as shown in
T1 and R1 LINE wire-wrap posts to prevent improper connection.
8
Repeat this entire procedure for each D3LX module installed.
Table 2. Tip and Ring Assignments for Protection Switching Applications
Working Card Slot
1-1
2-1
3-1
4-1
5-1
6-1
7-1
DS3 out
(transmit)
DS3 in
(receive)
1-3
T
L1
R
T1
L2
R1
T
R
T1
R1
Figure 4. Mounting the BNC Panel and Connecting ADC Adapter Cables (LEC Shown)
8
Figure 4 on page
TX/RX BNC Connector Pair
1/15
3/17
5/19
7/21
9/23
11/25
13/27
cables (coax end)
1
2
3
4
9
8
15
16
17
18
19
23
22
BNC panel - rear
BNC panel - front
LINE wire-wrap row
PORT 2 DTE RS-232
2-4
T
L1
L1
R
T1
L2
L2
R1
T
T
R
R
T1
T1
R1
R1
Loop Extender - front
CO rack - front
EQUIP wire-wrap row
August 30, 2002
8. The top of the conversion block mates with the
Protect Card Slot
TX/RX BNC Connector Pair
1-3
2-3
3-3
4-3
5-3
6-3
7-3
ADC adapter
7
6
5
4
3
2
1
21
20
19
18
17
16
15
PORT 3 DTE RS-232
SHIELD GND
FRAME GND
2-3
2-2
2-1
1-4
1-3
1-2
1-1
T
T
T
T
T
T
T
L1
L1
L1
L1
L1
L1
R
R
R
R
R
R
R
–48V
T1
T1
T1
T1
T1
T1
T1
L2
L2
L2
L2
L2
L2
R1
R1
R1
R1
R1
R1
R1
RTN
T
T
T
T
T
T
T
R
R
R
R
R
R
R
T1
T1
T1
T1
T1
T1
T1
R1
R1
R1
R1
R1
R1
R1
Loop Extender - rear
LTPS-UM-8013-03
2/16
4/18
6/20
8/22
10/24
12/26
14/28
CO rack - rear
DS3 out
DS3 in
ADC adapter
cables
(conversion block end)
1-1
T
L1
R
T1
L2
A
R1
B
A
B
T
R
T1
R1
D3LX CO and RMT Modules
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