Synway Information Engineering Co., Ltd
Figure 2-18 Pin Layout for Common RJ48C
Figure 2-19 Pin Layout for Special RJ48C
You can use the 2-way hub for RJ48C to convert each special RJ48C connector into 2
common RJ48C connectors as shown in Figure 2-20: connect the 1
st
, 2
nd
, 4
th
, 5
th
pins of the
special 8-pin RJ48C connector to the 1
st
, 2
nd
, 4
th
, 5
th
pins of the first common RJ48C
connector, and the 3
rd
, 6
th
, 7
th
, 8
th
pins to the 1
st
, 2
nd
, 4
th
, 5
th
pins of the second common
RJ48C connector. Besides, you are allowed to construct lines for conversion by yourself,
but must follow the order in pin connection as specified above.
Figure 2-20 2-way Hub for RJ48C
If the input line has a BNC coaxial interface, for boards with common RJ48C connectors,
use the RJ48C-to-BNC adapter as shown in Figure 2-21 to convert the RJ48C connector to
the BNC connector; for boards with special RJ48C connectors, use the 2-way Hub for
RJ48C to convert a special RJ48C connector to two common RJ48C before using the
RJ48C-to-BNC adapter.
Figure 2-21 RJ48C-to-BNC Adapter
If you would like to construct lines for BNC or L9 conversion by yourself, you should not only
make the line match the on-board interface, but also ensure the correct connection of
receive and transmit lines as shown in Figure 2-18.
Transmit
TTip
TRing
8
7
6
5
4
3
2
1
RTip
RRing
Receive
TRing
RTip
RRing
TTip
8
7
6
5
4
3
2
1
Connect to
1
st
Trunk
Receive
Transmit
Connect to
2
nd
Trunk
RTip
RRing
TTip
TRing
Transmit
Receive
Synway SSW Series E-type Digital Trunk Boards Hardware Manual
(Version 1.1)
Page 17
