Patton electronics 1020 Скачать руководство пользователя страница 6

4.   Connect 

one pair

of wires to the two XMT (transmit) poles on

the terminal block, making careful note of which colors you
use.  The Model 1020 is not polarity sensitive, so either wire
may connect to either pole.

5. Connect 

the 

other pair

of wires to the two RCV (receive) poles

on the terminal block, making careful note of which colors you
use.  The Model 1020 is not polarity sensitive, so either wire
may connect to either pole.

Ultimately, you will want to construct a two pair crossover
cable that makes a connection with the two Model 1020s as
shown below:

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 at the computer
end only.  A ground wire is 

not necessary 

for proper operation

of the Model 1020.

7.  When you finish connecting the wires to the terminal block, the

assembly should resemble the diagram below:

 RCV  G   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.  

 RCV  G   XMT

 RCV  G   XMT

9

10

XMT

RCV

XMT

RCV

G

G

RCV

XMT

RCV

XMT

To Shield (Optional)

}

One Pair

}

One Pair

Содержание 1020

Страница 1: ...20S Synchronous Short Range Modem with Transformer Isolation SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M1020 C Doc 041011UC Revised 4 20 98 C E R T I F I E D...

Страница 2: ...d to provide reasonable protection from such interference in a commercial installation However there is no guarantee that interference will not occur in a particular installation If the Model 1020 doe...

Страница 3: ...1020 has a crystal controlled internal clock Data rates are switch selectable from 1200 to 19 200 bps The Model 1020 s custom VLSI chip uses a separate filter for each data rate rather than a single...

Страница 4: ...INTERFACE The Model 1020 supports data only communication between two RS 232 devices at distances to 11 miles and data rates to 19 2 Kbps There are two essential requirements for installing the Model...

Страница 5: ...should be followed when using RJ 45 connectors 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 RC...

Страница 6: ...nnecting the shield at the computer end only A ground wire is not necessary for proper operation of the Model 1020 7 When you finish connecting the wires to the terminal block the assembly should rese...

Страница 7: ...e closed Repeat the process for the other side This completes cable installation 4 2 CONNECTION TO THE RS 232 INTERFACE Once you have connected the twisted pair wires correctly simply plug the Model 1...

Страница 8: ...RD Receive Data From Model 1020 4 RTS Request to Send To Model 1020 5 CTS Clear to Send From Model 1020 6 DSR Data Set Ready From Model 1020 7 SG Signal Ground 8 DCD Data Carrier Detect From Model 102...

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