Epson IR-320, Technical Reference Manual

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1-14 IR-320 System Overview Rev. C
List of main board jumpers
Address Default setting Description Remarks
JP1 1-2 For system use Not changeable
JP5 1-2 Do not clear/clear RTC and CMOS See “JP5 settings (RTC and CMOS clear),” below
JP7 Short COM1 power output setting See “Settings for JP7 to 18 (COM1, COM2, COM5,
COM6 power output),” below
JP8 Open
JP9 Open
JP10 Short COM2 power output setting
JP11 Open
JP12 Open
JP13 Short COM5 power output setting
JP14 Open
JP15 Open
JP16 Short COM6 power output setting
JP17 Open
JP18 Open
JP 25 1-2 fixed For system use Not changeable
JP31 1-2 TM reset polarity setting See “JP31 settings (TM reset polarity settings)” on
page 1-15
JP32 1-2 TM/customer display flow control See “JP32 settings (TM/customer display flow
control)” on page 1-15
JP5 settings (RTC and CMOS clear)
JP5 RTC clear
1-2 (default) Normal operations
2-3 Clear
Settings for JP7 to 18 (COM1, COM2, COM5, COM6 power output)
Jumper short-circuited Pin 1 function in the DB9 connector
COM1 JP7 (Default) DCD signal
JP8 +5 V of electrical power
JP9 +12 V of electrical power
COM2 JP10 (Default) DCD signal
JP11 +5 V of electrical power
JP12 +12 V of electrical power
COM5 JP13 (Default) DCD signal
JP14 +5 V of electrical power
JP15 +12 V of electrical power
COM6 JP16 (Default) DCD signal
JP17 +5 V of electrical power
JP18 +12 V of electrical power