Epson TM-H6000 Service Manual page 178

Confidential
TableD-42 RS-485 serial interface specifications
Item
Parity
Stop Bit
Connector
The date stop bit is fixed at 1 bit.
Signal level and communication control functions
TableD-43 Signal level and communication control function list (CS1/CS2)
CS1 CS2
H L
L H
• When the potential of CS1 is higher than CS2, the system judges that the printer can
communicate (host side can receive data).
• When the potential of CS1 is lower than CS2, the system judges that the printer cannot
communicate (host side cannot receive data).
TableD-44 Signal level and communication control function list (DR1/DR2)
DR1 DR2
H L
L H
• When the potential of DR1 is higher than DR2, the system judges that the printer can
communicate (data can be received).
• When the potential of DR1 is lower than DR2, the system judges that the printer cannot
communicate (data cannot be received).
Online/offline
This printer does not have an online/offline switch. It goes offline in the following cases:
• Period after power on during which mechanisms are initialized until communication
can be performed.
• During execution of self test
• When the cover is open
• During paper feed with the paper FEED button
• When printing is stopped due to no paper (only when there is no paper roll)
Rev. A
Specifications
None, even, odd
1 bit or more
D-SUB25 (female)
Function
Communication is available.
Communication is not available.
Function
Communication is available.
Communication is not available.
TM-H6000/H6000P Service Manual
Product Overview Appendix D-87