Patton electronic 1050patton † Connection to ground is optional, Model 1060 daisy chain wiring

4.1.2 TWISTED PAIR CONNECTION USING RJ-11

If your two-pair cable is terminated in an RJ-11 plug, you may use the RJ-11 jack in the back of the Model 1050 to make the connection. The RJ-11 jack on a Model 1050 series Short Range Modem is prewired for a standard TELCO wiring environment. To be sure you have the right wiring, use the diagram below as a guide.

RJ-11	SIGNAL
1 ---------------------	GND†
2 ---------------------	RCV-
3 ---------------------	XMT+
4 ---------------------	XMT-
5 ---------------------	RCV+
6 ---------------------	GND†

For proper signal crossing between two Model 1050s using RJ-11 connectors, pin-out the twisted pair cable according to the diagram below.

	RJ-11 Cable (4-Wire)
SIGNAL	PIN#	PIN#	SIGNAL
GND†	1-----------------------	6	GND†
RCV-	2-----------------------	4	XMT-
XMT+	3-----------------------	5	RCV+
XMT-	4-----------------------	2	RCV-
RCV+	5-----------------------	3	XMT+
GND†	6-----------------------	1	GND†

†Connection to ground is optional

1

2

3

4

5

6

4.2 WIRING FOR MULTIPOINT CIRCUITS

The Model 1050 supports multi-point applications using either a star or daisy chain topology. Both topologies require special wiring, as well as specific carrier control strap settings for master and slave units.

4.2.1 DAISY CHAIN TOPOLOGY

Using a daisy chain topology, you may connect as many as 10 Model 1050s together in a master/slave arrangement. Maximum distance between the units will vary based upon the number of drops, data rate, wire gauge, etc. Call Patton Technical Support for specific distance estimates.

Figure 3 (below) shows how to wire the two-pair cables properly for a Model 1050 daisy chain topology. Note that the ground connection is not needed.

HOST	FIRST SLAVE	OTHER SLAVE(S)
XMT+	RCV+	RCV+
XMT-	RCV-	RCV-
RCV+	XMT+	XMT+
RCV-	XMT-	XMT-

Figure 3. Model 1060 daisy chain wiring

In a multipoint topology, you must configure the master Model 1050's carrier control strap differently than those of the slave Model 1050(s). Here are the proper carrier control strap settings for a daisy chain topology:

Function	Carrier Control Strap Setting
Master	Carrier “Constantly ON” (pegs 2 & 3)
Slave(s)	Carrier “Controlled by RTS” (pegs 1 & 2)

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