Patton electronic 1004S Twisted Pair Connection Using RJ-11 or RJ-45, Signal PIN#

4.1.2 TWISTED PAIR CONNECTION USING RJ-11 OR RJ-45

The RJ-11 and RJ-45 connectors on the Model 1004’s twisted pair interface are pre-wired for a standard TELCO wiring environment. The signal/pin relationships are shown below:

RJ-11	SIGNAL	RJ-45	SIGNAL
1	GND†	1	N/C
2	RCV-	2	GND
3	XMT+	3	RCV-
4	XMT-	4	XMT+
5	RCV+	5	XMT-
6	GND	6	RCV+
		7	GND
		8	N/C
†Connection to ground is optional
	1		1
			2
	2		3
	3		4
	4		5
	5		6
	6		7
			8

AT&T standard modular color codes

When connecting two Model 1004’s, it is necessary to use a

crossover cable. The diagrams below show how a crossover cable should be constructed for the following environments: 4-wire RJ-11, 4-wire RJ-45, 2-wire RJ-11 or 2-wire RJ-45.

	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

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	RJ-45 Cable (4-Wire)
SIGNAL	PIN#	PIN#	SIGNAL
GND†	2-----------------------	7	GND†
RCV-	3-----------------------	5	XMT-
XMT+	4-----------------------	6	RCV+
XMT-	5-----------------------	3	RCV-
RCV+	6-----------------------	4	XMT+
GND†	7-----------------------	2	GND†

	RJ-11 Cable (2-Wire)
SIGNAL	PIN#	PIN#	SIGNAL
XMT+	3-----------------------	3	XMT+
XMT-	4-----------------------	4	XMT-
	RJ-45 Cable (2-Wire)
SIGNAL	PIN#	PIN#	SIGNAL
XMT+	4-----------------------	4	XMT+
XMT-	5-----------------------	5	XMT-

†Connection to ground is optional

4.2 WIRING FOR MULTIPOINT CIRCUITS

The Model 1004 supports multi-point applications using either a star or daisy chain topology. Both topologies require special wiring, as well as specific DIP switch settings for master and slave units. Note:

Refer to Section 3.2.2 for multipoint DIP switch settings.

4.2.1 STAR TOPOLOGY

Using a star topology, you may connect several Model 1004s 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 Technical Support for specific distance estimates.

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