4.0 INSTALLATION
The Model 1060 is easy to install. After configuring the DIP
switches and DCE/DTE switches, connect the two twisted pairs using
one of two methods: terminal blocks or RJ-11 jack. Figure 2 (below)
shows the location of the terminal blocks and RJ-11 jack, as well as the
female DB-25, on the rear of the Model 1060.
Figure 2. Rear view of 1060 showing interface connectors
4.1 TWISTED PAIR WIRING OVERVIEW
These short range modems are designed to work in
pairs
. You will
need one at each end of a 4-wire twisted pair circuit. The pairs must be
"dry" (unconditioned) metallic wire, 19 - 26 AWG. The smaller gauges
limit distance somewhat compared with larger gauges. When you have
completed wiring for your data circuit, the pin connections should be as
shown below:
4.1.1 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS
If your two twisted pair line terminates in bare wires, strip the ends
and connect the individual leads to each Model 1060's terminal block.
Be sure the end-to-end connections follow the diagram above.
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 1060 to make the connection.
The RJ-11 jack on a Model 1060 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 1060s using RJ-11
connectors, pin-out the twisted pair cable according to the diagram
below.
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
‡
Standard color codes—yours may be different
AT&T standard modular color codes
7
8
1 - Blue
2 - Yellow
3 - Green
4 - Red
5 - Black
6 - White
XMT +
RCV+
XMT -
RCV -
G
G
RCV -
XMT -
RCV +
XMT +
To Shield (Optional)
}
One Pair
}
One Pair
RS-232 Interface
Made In The USA
Line
Power
RX+ RX- GND TX- TX+
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Range Modem