Patton electronic 1094A user manual Power-Up, LED Status Monitors, Td & Rd, Cts, Dtr, Test Modes

5.0 OPERATION

Once the Model 1094A is properly configured and installed, it should operate transparently. This sections describes power-up, read- ing the LED status monitors, and using the built-in loopback test modes.

5.1 POWER-UP

To apply power to the Model 1094A, first be sure that you have read Section 4.3, and that the unit is connected to the appropriate power source. Then power-up the unit using the rear power switch.

5.2 LED STATUS MONITORS

The Model 1094A features eight front panel LEDs that monitor power, the DTE signals, network connection and test modes. Figure 5 (below) shows the front panel location of each LED. Following Figure 5 is a description of each LEDs function.

								Test Modes
TD	RD	CTS	CD	DTR	NS	ER	TM
							Local -	- 511E
							Normal -	- Normal
							Remote -	- 511

Control Port

	Figure 5. Model 1094A Front Panel
TD & RD	Glows yellow to indicate an idle condition of Binary
	“1” data on the respective terminal interface sig-
	nals. Green indicates Binary “0” data
CTS	Glows green to indicate that the Clear to Send sig-
	nal from the modem is active.
CD	Glows yellow if no carrier signal is being received
	from the remote modem. Green indicates that the
	remote modem’s carrier is being received.
DTR	Glows green to indicate that the Data Terminal
	Ready signal from the terminal is active.

ER - blinks ON/OFF after a 511/511E test has timed out. See Section 5.3.3 (Test Pattern Generator) for more information.

-flashes once to indicate that a CRC error has occurred (during normal operation) or bit errors have occurred (during 511/511E tests).

-Only at power up, blinks once every 200 ms if the DTE Rate is set to an unsupported settings

TM glows yellow to indicate that the Model 1094A has been placed in Test Mode. The unit can be placed in test mode by the local user or by the remote user.

NS (No Signal) glows red to indicate that the local Model 1094A is not connected with the remote Model 1094A.

5.3 TEST MODES

The Model 1094A offers two proprietary loopback test modes, plus a built-in V.52 BER test pattern generator to evaluate the condition of the modems and the communication link. These tests can be activat- ed physically from the front panel or via the DTE interface.

5.3.1 Overview

Figure 6 below shows the major elements used in the loop-back and pattern tests available in the Model 1094A. Each block has sever- al functions. Following Figure 6 are descriptions that show how the elements are used during Test Modes.

	Pattern		Loop		Loop		Pattern
Framer								Framer
				Line
	Gen/Det		Control		Control		Gen/Det
		Processor				Processor

Figure 6: Block Diagram Model 1094A

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