Patton electronics 1006 User Manual page 5

Db-9 async. short range modem with carrier sense
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4. Connect one pair of wires to XMT+ and XMT- (transmit positive
and negative) on the terminal block, making careful note of
which color is positive, and which color is negative.
5. Connect the other pair of wires to RCV+ and RCV- (receive
positive and negative) on the terminal block, again making
careful note of which color is positive and which color is
negative.
Ultimately, you will want to construct a two pair crossover cable
that connects the two short hauls as shown below:
XMT +
XMT -
G
To Shield (Optional)
RCV -
RCV +
6.
If there is a shield around the telephone cable, it may be
connected to "G" on the terminal block. To avoid ground
loops, we recommend connecting the shield only at the
computer end. A ground wire is not necessary for proper
operation of the Model 1006.
7.
When you finish connecting the wires to the terminal block, the
assembly should resemble the diagram below:
7
}
RCV+
One Pair
RCV -
G
XMT -
}
One Pair
XMT +
8.
Place the 2 halves of the strain relief assembly on either side
of the telephone wire and press together very lightly. Slide the
assembly so that it is about 2 inches from the terminal posts
and press together firmly. If your cable diameter is too small
or too large for our strain relief, please contact our technical
support. We have strain relief assemblies to accommodate
most cable diameters.
9.
Insert the strain relief assembly with the wire going through it
into the slot in the bottom half of the modem case and set it
into the recess in the case.
8

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