Patton electronic 1092A user manual Off, Installation, Connecting the Twisted Pair Interface

The Model 1092A Test Modes are described on the following page.

To run or terminate a particular test, key in the option to get to that screen menu.

OFF	Terminates all tests
511	Initiates the built-in test pattern generator
	and detector.
511 with Errors	Initiates the built-in test pattern generator
	and detector. The test pattern generator
	also injects intentional errors approximately
	once per second.
Local Line Loop	Initiates the Local Line Loop test and starts
and 511	the internal 511 generator and detector.
Local Line Loop	Initiates the Local Line Loop test and starts
and 511 w/errors	the internal 511 generator and detector. In
	this test, the 511 pattern generator injects
	intentional errors into the data stream.
Remote Digital	Initiates the Remote Digital Loopback test.
Loop	Any data sent to the remote 1092A is
	returned to the originating device.
Remote Digital	Initiates the Remote Digital Loopback test
Loop and 511	and starts the internal 511 generator and
	detectors.
Remote Digital	Initiates the Remote Digital Loopback test
Loop and	and starts the 511test patterns. In this test
511 with errors	the 511 pattern generator will inject initial
	errors into the data stream.

The Modem Status Screen is displayed upon initiating a test. Press ‘ESC’ to return to the Test Mode Menu.

Press the space bar to update and redisplay the status.

4.0 INSTALLATION

Once the Model 1092A 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 CONNECTING THE TWISTED PAIR INTERFACE

The Model 1092A supports communication between two DTE devices at distances to 5 miles (8 km) over 24AWG (.5mm) twisted pair wire. There are two essential requirements for installing the Model 1092:

1.These units work in pairs. Both units at the end of the twisted pair must have the same 2-Wire or 4-Wire setting. For instance, if the application is a 2-Wire application, then both units must be in the 2-Wire setting.

2.To function properly, the Model 1092A needs one or two twisted pairs of metallic wire. This twisted pair must be unconditioned, dry, metallic wire, between 19 (.9mm) and 26 AWG (.4mm) (the higher number gauges may limit distance somewhat). Standard dial-up telephone circuits, or leased circuits that run through signal equalization equipment, or standard, flat modular telephone type cable, are not acceptable.

The RJ-45 connector on the Model 1092A’s twisted pair interface is polarity insensitive and is wired for a two-wire or four-wire interface. The signal/pin relationships are shown in Figure 4 below.

	1			(N/C)
1	2			(GND)
		3		(4-Wire Rx)
2
3			4	(2-Wire TIP/4-Wire Tx)

4

55 (2-Wire RING/4-Wire Tx)

6 6 (4-Wire Rx)

7

8 7 (GND)

8 (N/C)

Figure 4. Model 1092A twisted pair line interface.

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