NCR 7156, Service Manual

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7156 Service Guide Appendix B: Communication Information
September 1998 173
Note: The following options are set with the printer in the setup mode. See “Level 1
Diagnostics” in the “Diagnostics” chapter for more information.
DIP Switch Settings for Data Error and Data Buffer Options (Choose one from each option)
Switch 1 Switch 2 Switch 3 Switch 4 Switch 5 Switch 6 Option
On Off On Off Off Off “?” for Data Errors*
On Off On Off Off On Ignore Data Errors
On Off On Off On Off 4K Byte Data Buffer*
On Off On Off On On One Line Data Buffer
*Default
LCSIO (RS-485) Switch Settings
The DIP switch on the printed circuit board is used to set the LCSIO (RS-485) address bits
as shown in the following illustration and table.
DIP Switch 1
Off = LCSIO (RS-485) Communication: On-line Mode (Default)
On = Level 1 Diagnostics: Setup Mode
DIP Switch 2 is always Off
Address w/o Parity Address w/Parity Switch 3 Switch 4 Switch 5 Switch 6
3C BC Off Off Off Off
3D 3D Off Off Off On
3E 3E Off Off On Off
3F BF Off Off On On
40 40 Off On Off Off
41 C1 Off On Off On
42 C2 Off On On Off
43 43 Off On On On
44 C4 On Off Off Off
45 45 On Off Off On
46 46 On Off On Off
47 C7 On Off On On
48 C8 On On Off Off
49 49 On On Off On
4A 4A On On On Off
4B CB On On On On