Filter
Top Products
Installation 47
Model 3088 Series User Manual 3 • RocketLink-G installation
Connect twisted pair (120 ohm) to E1 network
The Model 3088/K is equipped with a single RJ-48C jack for connections to a 120 ohm twisted pair E1 net-
work interface. If your E1 network terminates via RJ-48C, use the diagram below and the table following it to
make the proper connections. The connector pinout and signals are shown in figure 13.
Figure 13. 120 Ohm RJ-48C E1 interface
Use the following connection diagram to connect the 120-ohm E1 network channel.
\
Figure 14. RJ-45 cable diagram for E1 connection
Connecting dual coaxial cable (75 ohm) to E1 network
The Model 3088/K is also equipped with dual female BNCs (TX and RX) for connection to a 75 ohm dual
coax E1 network interface. If your E1 network terminates via dual coaxial cable, use figure 15 to make the
proper connections.
The interconnecting cables shall be acceptable for external use
and shall be rated for the proper application with respect to volt-
age, current, anticipated temperature, flammability, and
mechanical serviceability.
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
(RX) Receive (Ring)
(RX) Receive (Tip)
Shield
(TX) Transmit (Ring)
(TX) Transmit (Tip)
Shield
No connection
No connection
Signal NameRJ-48C Jack
RJ-48C Cable (8-Wire)
E1 (G.703/G.704)
Network signal
3088/K
Signal Pin #
RX (Ring)
RX (Tip)
Shield
TX (Ring)
TX (Tip)
Shield
1
2
3
4
5
6
TX (Ring)
TX (Tip)
Shield
RX (Ring)
RX (Tip)
Shield
CAUTION