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Black Box PCW22A-R3 Manual De Usuario

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CHAPTER 3:  Installation
9
Switch #4
ON = Self-Diagnostics Mode.
OFF = Normal Operation.
Switch #5, #6
—Block Size Specification.
5
6
OFF OFF
80 
Characters
OFF ON
128 
Characters
ON OFF
256 
Characters
ON ON
512 
Characters
NOTE
For 3741, set SW3, Switch #5: OFF (Fixed length)SW2, Switch #5: OFF, and Switch #6: OFF (128 character block)
Switch #7, #8
—Asynchronous Parity Specification.
7
8
OFF 
OFF
Space Parity (always 0)
OFF 
ON
Mark Parity (always l)
ON OFF
Odd 
Parity
ON ON
Even 
Parity
NOTE
The A/S-2G only recognizes a 7-bit, 1 bit parity sequence.  8-bit data, no parity is the same as 
7-bit, space parity.  If you have 8-bit data, no parity, set SW2, Switches #7 and #8 to the OFF position.
3.2.3  SELF-DIAGNOSTICS
There are two ways to enter the self-diagnostic mode.  The first method requires that you locate SW2,
switch #4 and set it to the ON position.  When you press the reset switch, the A/S-2G will display
diagnostic information (see below) on a terminal or printer connected to Port A.
The second method requires a terminal connected to Port A.  When you type an ampersand (“&”)
and then a pound sign (“#”), the A/S-2G will enter the Self-Diagnostics/Reconfigure Switch Menu.
Press the “l” key to enter the self-diagnostics mode and the A/S-2G will display diagnostic information
on your terminal.
This is what the A/S-2G does in self-diagnostic mode:
Displays its software version
Checks the ROM
Checks the RAM
Displays the state of SW3 
Displays the state of SW2 
Displays the state of SW1 Port A 
Displays the state of SW1 Port B 
The information for SW3, SW2, and SW1 is listed in binary:  1=ON and 0=OFF.