SATO M-5900RV Specifications download pdf (Page 33)

Operation Manual 4. Interface Specifications

M5900RV 33

The receiving buffer will not be able to receive more data again until

a “Buffer Available” condition occurs. This takes place when the

receiving buffer has emptied so that only 56K bytes of data are

being held (8K bytes from being full). At this time, DTR will go

“high” or an X-On is sent to tell the host that it can again receive

data. See Figure 3-2.

4.4 RS232C Serial Interface

General Specifications

Asynchronous ASCII

Half-duplex communication.

Ready/Busy Hardware Flow Control

Pin 20, DTR Control

Pin 4, RTS Error Condition

X-On/X-Off Software Flow Control

Bi-Directional communication (ENQ/Response)

Data Transmission Rate

2400, 4800, 9600 and 19200 bps

Character Format

1 Start Bit (fixed)

7 or 8 data bits (selectable)

Odd, Even or No Parity (selectable)

1 or 2 Stop bits (selectable)

DTR High or

X-On

Buffer Near Full

DTR Low or

X-Off

62K 64K

Fig. 3-1

DTR Low or

X-Off

Buffer Available

DTR High or

X-On

56K 64K

Fig. 3-2

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 61 62

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SATO M-5900RV Specifications Page 33