ADTRAN E220 HFAC HDSL Faceplate Features, Control Port Operation, Screen Abbreviations

interconnect subsequent shelves. Each shelf controller should be assigned unique sequential shelf addresses. No connection should be made to the RS422 in connector on the shelf containing the E220 HCOT-CTL.

4. FACEPLATE FEATURES

The terminal interface operates at a data rate range of

4.8kbps to 19.2 kbps. The asynchronous data format is fixed at eight data bits, no parity, one stop bit. The supported terminal type is VT 100, or compatible.

Optional terminal parameters should be set as follows:

Table 6 defines the faceplate features of the HFAC.

5. CONTROL PORT OPERATION

The HFAC provides a faceplate-mounted DB9 connector which supplies an RS232 interface for connecting to a controlling terminal. Pin assignments are shown in Figure 6.

DSR	6	1
		2	TXD (TXD to DTE)
RTS	7
		3	RXD (TXD from DTE)
CTS	8
		4	DTR
	9
		5	SGN GND

Figure 6. Control Port Pin Assignments

(DCE Configuration)

¥XON/XOFF flow control	On
¥TX carriage return	<CR> (not <CRLF>)
¥Send ACK*	Off
¥Linewrap	Off
¥Duplex setting	Full
¥Asynchronous format	8 data bits, no parity,
	1 stop bit
¥Cursor	Off (if possible)
¥Display Width	80 columns
¥Display Height	24 lines (minimum)

*or any other autonomously-sent character from terminal

Screen Abbreviations

Screen diagram abbreviations used are defined in

Table 7.

Table 6. HFAC Faceplate Features

	HFAC	Indicators	Description
	1221051L1	and LEDs
A	CRITICAL	PWR	Indicates that power is present to the HFAC card.
L		PWR
A	MAJOR	ALARMS	Critical (red) ...... Indicates that a critical alarm condition is present.
R
M	MINOR	ACO
S			Major (red) ........ Indicates that a major alarm condition is present.
	SHELF ADDRESS		Minor (yellow) ... Indicates that a minor alarm condition is present.
			ACO ................. Alarm cut off. Indicates that the audible portion of an
			alarm has been terminated.
CRAFT INTERFACE
		SHELF	The shelf address is indicated using two 7-segment LED displays. The
R		ADDRESS	address is programmed using the switches described in subsection 2 and
			tables A and B; or using the Options Setup screen (see Figure 11).
S
2
3		Button	A single momentary push-button provided to operate the alarm cut off
2
		ACO	function. When the button is present, the audible portion of an active
	0.25 AMP		alarm is silenced. The condition of the alarm itself is not affected.
		Fuse	This 0.25 -amp fuse is provided to protect the card from power-related
			failures. The fuse is a BUSS BMT-0.25, or equivalent. If the fuse opens, a
			fuse alarm is generated as described in subsection 2. The fuse has a visual
			tripped indicators. When the metal tab (visible through the cover) flips up,
			the fuse has opened.
		RS232	A faceplate-mounted DB9 connector which supplies an RS232 interface
			for connection to a controlling terminal. Refer to subsection 5.

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