Patton electronic 2710 Switch SW6 Clock Mode, Switches SW7 and SW8 Line Build Out, VT100

Switch SW6: Clock Mode

Set Switch SW6 to determine the 2710’s transmitter timing.

SW6	Clock Mode
Off	Network Clock. Transmitter timing is
	derived from the received line signal.
On	Internal Clock. Transmitter clock is
	derived from an internal oscillator.

NOTE: When using the Model 2710 as a high-speed short range modem, one unit of the link must be configured in Internal Clock mode, and the opposite end unit must be configured for Network Clock mode.

Switches SW7 and SW8: Line Build Out

Use Switches SW7 and SW8 to set the Line Build Out (LBO). The Line Build Out varies the pulse shape and attenuation of the signal sent to the network. The amount of Line Build Out depends on NetLink™ T1’s distance to the last repeater. The telephone company providing the service will advise on the amount of LBO necessary.

SW6	SW7	Function
Off	Off	0-133 ft (0dB)
On	Off	-7.5dB
Off	On	-15.0dB
On	On	-22.5dB

3.2 SOFTWARE CONFIGURATION

The NetLink-T1™ features a menu-driven command system that allows you to monitor/configure its operating parameters. Follow the instructions below to configure the Model 2710 using the software switches:

1)Plug the 9-pin male end of the cable to your terminal or com- puter’s DB-9 serial port and start up the terminal emulator software if necessary. Plug the miniature stereo plug into the rear of the unit. The small recessed jack on the right side of the unit is the control port jack.

NOTE: If your terminal uses a DB-25 connector, please use a DB-9 to DB-25 Adapter to connect to the cable (See Model 18PC-M).

2)Power up the terminal and set its RS-232 port as follows:

9600 Baud

8 data bits, 1 stop bit, no parity Local echo off

ANSI or VT-100 emulation

3)Here is an example of a terminal emulator setup session. In normal font are the various parameter types. In bold type are the values that should be used for best results. Your terminal program’s setup screen may differ from this one:

Baud rate: 9600	Parity: None	Data Length: 8	Stop Bits: 1
Default terminal type:		VT100
Local Echo:		Off
Add Line Feeds after CRs:		Off
Received Backspace Destructive:		On
Backspace key sends:		BS
XON/XOFF software flow control:		On
CTS/RTS hardware flow control:		Off
DSR/DTR hardware flow control:		Off

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