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7

8

Switch S1-8: V.54 Enable / Disable

The setting for switch S1-8 determines whether the Model 1094

will respond when it receives the V.54 sequence. If you suspect the
Model 1094 may be getting tricked into the loopback test by false
detection of user data, you can try setting this to “Disable.”

S1-8

Setting

On

Disabled

Off

Enabled

3.1.2 Switch Set S2

The settings for DIP switches S2-1 through S2-4 determine the

synchronous data rate of the Model 1094. All possible settings (includ-
ing the default) are shown below:

S2-1

S2-2

S2-3

S2-4

Setting

Off

On

On

On

384 kbps

On

Off

Off

Off

768 kbps (default)

4.0  INSTALLATION

Once the Model 1094 is properly configured, it is ready to connect

to the twisted pair interface, to the serial port, and to the power source.
This section tells you how to make these connections.

4.1  CONNECTION TO THE TWISTED PAIR INTERFACE

The Model 1094 supports communication between two terminal

devices at distances to 4.9 miles (7.9 km) and data rates to 768 kbps.
There are two essential requirements for installing the Model 1094:

1.

These units work in pairs. Therefore, you must have one 
Model 1094 (or a compatible model) at each end of a two 
twisted pair interface.

2.

To function properly, the Model 1094 needs two twisted pairs 
of metallic wire. These twisted pairs must be 
unconditioned, dry, metallic wire, between 19 and 26 AWG 
(.4 mm and .9 mm, inversely) (the higher AWG gauges may 
limit distance somewhat). Standard dial-equalization 
equipment, or standard, flat modular telephone type cable, are
not acceptable.

4.1.1  TWISTED PAIR CONNECTION USING RJ-45

The Model 1094 uses a modular RJ-45 jack for twisted pair line

connection. The signal/pin relationships are shown below:

RJ-45

SIGNAL

1 ..........................XMT+
2 ..........................XMT-
3 ..........................N/C
4 ..........................GND*
5 ..........................GND*
6 ..........................N/C
7 ..........................RCV+
8 ..........................RCV-

*Connection to ground is optional








Содержание 1094

Страница 1: ...1094 KiloModem 768TM High Speed Baseband Modem SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M1094 C Doc 032031UC R evised 04 13 99 C E R T I F I E D An ISO 9001...

Страница 2: ...which are designed to provide reasonable protection from such interference in a commercial installation However there is no guarantee that interfer ence will not occur in a particular installation If...

Страница 3: ...rn generator and seven front panel LED indicators Data integrity is enhanced by automatic equalization and gain control The Model 1094 also incorporates transformer isolation and surge protection to g...

Страница 4: ...ications S1 5 Setting On Controlled by RTS Off Constantly ON Switch S1 6 DTE Control of RDL The setting for switch S1 6 determines whether DTE control of remote digital loopback test is enabled or dis...

Страница 5: ...onnections 4 1 CONNECTION TO THE TWISTED PAIR INTERFACE The Model 1094 supports communication between two terminal devices at distances to 4 9 miles 7 9 km and data rates to 768 kbps There are two ess...

Страница 6: ...sp the two thumbscrews and gently pull the module from the unit Apply equal force to the thumbscrews to keep the module straight during the removal process Installing the New QuickConnect Module 1 Mak...

Страница 7: ...configuration of the X 21 port Reinstall the module according to the instructions in Section 4 2 1 4 3 CONNECTION TO THE POWER SOURCE The Model 1094 is available with three power supply options The St...

Страница 8: ...em s carrier is being received DTR Will glow green to indicate that the Data Terminal Ready signal from the terminal is active ER Will glow red to indicate the likelihood of a Bit Error in the receive...

Страница 9: ...test equipment indicates a fault and the Local Analog Loopback test was successful for both Model 1094s you may have a problem with the line between the Model 1094s You should inspect the line for pro...

Страница 10: ...working properly 3 This test can be done by one operator by first activating the local analog loop or remote digital loop APPENDIX A PATTON ELECTRONICS MODEL 1094 SPECIFICATIONS Transmission Format S...

Страница 11: ...6 Use of twisted pair with a resistance greater than the above specifications may cause a reduction in maximum distance obtainable Functionality should not be affected Many environmental factors can a...

Страница 12: ...Line Loop 19 RTS Request to Send 20 DTR Data Transfer Rate 21 DL Remote Digital Loop 22 DSR Data Set Ready 23 DTR Data Transfer Rate 24 XTC External Transmit Clock 25 TM Test Mode APPENDIX D PATTON E...

Страница 13: ...Signal 1 Frame Ground 2 T Transmit Data A 3 C Control A 4 R Receive Data A 5 I Indication A 6 S Signal Element Timing A 7 BT Byte Timing A 8 SGND Signal Ground 9 T Transmit Data B 10 C Control B 11 R...

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