Patton electronic 1007S Connection to the Twisted Pair Interface, Signal PIN# Color ‡

3.0 INSTALLATION

The Model 1007 is easy to install. This section tells you how to properly connect the Model 1007 to the twisted pair interface and Mac phone port, and how to operate the Model 1007.

3.1 CONNECTION TO THE TWISTED PAIR INTERFACE

The Model 1007 supports data-only communication between a Mac and another serial device. There are two requirements for instal- lation:

1.These units work in pairs. You must have one Model 1007 (or a compatible model) at each end of the two twisted pair cable.

2.To function properly, the Model 1007's modular jacks must be con- nected to two twisted pairs of metallic wire. The pairs must be unconditioned, dry metallic wire, between 19 and 26 AWG (the higher number gauges may limit distance). Standard dial-up tele- phone circuits, or leased circuits that run through signal equaliza- tion equipment are not acceptable.

For your convenience, the Model 1007 is available with two differ- ent twisted pair interfaces: an RJ-11 jack or an RJ-45 jack.

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

The Model 1007's RJ-11 and RJ-45 connectors on the twisted pair interface are pre-wired for a standard TELCO wiring environment (see Figure 1). The table on the following page describes the signal/pin relationships.

1	- Blue	1	- Blue
		2	- Orange
2	- Yellow	3	- Black
3	- Green	4	- Red
4	- Red	5	- Green
5	- Black	6	- Yellow
6	- White	7	- Brown
		8	- Slate

Figure 1. AT&T standard modular color codes

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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

When connecting two Model 1007s, it is necessary to use a

“crossover” cable. The diagram below shows how a crossover cable should be constructed for an environment where both Model 1007s use a 4-wire RJ-11 connector. Similar logic should be followed when using an RJ-45 connector or a combination of the two.

SIGNAL	PIN#	COLOR‡	COLOR	PIN#	SIGNAL
GND†	1	Blue --------------------	White	6	GND†
RCV-	2	Yellow ------------------	Red	4	XMT-
XMT+	3	Green ------------------	Black	5	RCV+
XMT-	4	Red ---------------------	Yellow	2	RCV-
RCV+	5	Black -------------------	Green	3	XMT+
GND†	6	White -------------------	Blue	1	GND†

†Connection to ground is optional

‡Standard color codes—yours may be different

3.2 CONNECTION TO THE MAC PHONE PORT

The Model 1007 should be connected to your Mac through the 1 foot extension cable. Simply plug one end of the cable into the Model 1007 and the other end directly into the phone (serial) port of your Mac. The pin-outs are listed below.

Serial Port Pinout (RJ-45)

1 = N/C

2= HSKi (Handshake In)

3= HSKo (Handshake Out)

4= Ground

5= RD- (Receive Data -)

6= TD- (Transmit Data -)

7= N/C

8= N/C

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