Advertisement
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
2 - Yellow
3 - Green
4 - Red
5 - Black
6 - White
Figure 1. AT&T standard modular color codes
1 - Blue
2 - Orange
3 - Black
4 - Red
5 - Green
6 - Yellow
7 - Brown
8 - Slate
3
RJ-11
SIGNAL
1 ----------------GND
†
2 ----------------RCV-
3 ----------------XMT+
4 ----------------XMT-
5 ----------------RCV+
6 ----------------GND
†
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
‡
†
GND
1
Blue --------------------White
RCV-
2
Yellow ------------------Red
XMT+
3
Green ------------------Black
XMT-
4
Red ---------------------Yellow
RCV+
5
Black -------------------Green
GND
†
6
White -------------------Blue
†
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
RJ-45
SIGNAL
1 ----------------N/C
†
2 ----------------GND
3 ----------------RCV-
4 ----------------XMT+
5 ----------------XMT-
6 ----------------RCV+
7 ----------------GND
†
8 ----------------N/C
COLOR
PIN# SIGNAL
†
6
GND
4
XMT-
5
RCV+
2
RCV-
3
XMT+
1
GND
†
4
Advertisement
