Patton electronic 1186 user manual Connect the G.703/G.704 Network, Connect the Fiber Interface

4.0INSTALLATION

Once the Model 1186 is properly configured, it is ready to connect to the fiber interface, to the G.703/G.704 equipment, and to the power source. This section describes how to make these connections.

The power, G.703/G.704 and Fiber Line connections are located on the rear panel of the Model 1186. Figure 5, below, shows the loca- tion of each of these ports.

G.703/G.704

Figure 5. G.703/G.704 Interface and power connection ports

4.1 CONNECT THE G.703/G.704 NETWORK

There are two ways to connect to the G.703/G.704 Network. This section describes both options. After selecting the appropriate connec- tion, set the internal jumpers as described in section 3.1.2 of this man- ual.

4.1.1 Connect Twisted Pair (120 Ohm) to G.703/G.704 Network

The Model 1186 is equipped with a single RJ-48C jack option for connections to a G.703/G.704 Network. If your G.703/G.704 Network terminates via an RJ-48C, use the diagram below (Figure 6).

	1	RX Data (TIP)	From Network
	2	RX Data (RING) }
1
	3	(no connection)
2
3	4	TX Data (TIP)
4	5	TX Data (RING) } To Network
5
6	6	(no connection)
7
8	7	(no connection)
	8	(no connection)

Figure 6. G.703/G.704 Network Interface.

4.1.2 Connect Coax Cable to the G.703/G.704 Network

The Model 1186 is also equipped with dual female BNCs (TX and RX) for connection to a 75 ohm dual coax G.703/G.704 Network inter- face. If your G.703/G.704 Network terminates via dual coaxial cable,

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use the diagram below to make the proper connections. The connec- tor pinout and signals are shown in Figure 7, below.

	Network
RX	TX
(Data FROM	(Data TO
G.703/G.704	G.703/G.704
Network)	Network)

Figure 7. Fiber cable to G.703/G.704 Interface connection

4.2 CONNECT THE FIBER INTERFACE

The Model 1186 is designed to be connected to another Model 1186. The Model 1186 supports communication between G.703/G.704 equipment over one string of multi-mode fiber at distances up to 2.5 km (1.5 miles). One modem can connect to another on the end of a single string of fiber optic cable.

To connect two Model 1186s, use one string of 62.5/125 micron multi-mode fiber. The fiber connects to each Model 1186 using either an ST or an SMA connector.

Figure 8 below shows a close-up of both connector types.

Figure 8: Model 1186 SMA and ST multi-mode fiber connectors

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