Epson TM-H5000II Series Manual page 48

CONFIDENTIAL
Table 2.1.8 TM-H5000II II II II series Printer Status and Signals (Continued)
Pin Number Signal name
10 CS1
11 CS2
NOTES: 1. When the remaining space in the receive buffer drops to 16 bytes, the printer
status becomes "buffer full" and it remains "buffer full" until the space in the receive
buffer increases to 26 bytes.
2. The printer ignores the data received when the remaining space in the receive
buffer is 0 bytes.
2.1.3.4 XON/XOFF transmit timing
Refer to Section 2.1.1.4.
For the DIP switch settings of the off-line status, refer to Section 3.3.3
2.1.3.5 Data format when using RS-485
Transmission data (8bits, none parity)
S T A R T
H
L
"H" indicates
<Printer transmission data>
<Printer reception data>
"L" indicates:
<Printer transmission data>
<Printer reception data>
The transmission data is H = 1, L = 0
NOTE: This format is used when the UART for RS-232 is connected to the RS-485 driver.
Signal direction Function
Input 1)When DTR>DSR is selected:
The signal is checked and data is transmitted only when
the host is ready to receive data (READY) (except for
transmitted by DLE EOT or GS a).
2)When XON/XOFF control is selected:
Transmits data regardless of the status of this signal.
1 2 3
Figure 2.1.5 RS-485 Communication data format
SD1<SD2
RD1<RD2
SD1<SD2
RD1<RD2
TITLE
TM-H5000 II II II II series
Specification
(STANDARD)
4 5 6 7
SHEET
REVISION
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S T O P
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