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4-23
LT 1804 Product Reference Guide: Programming the LT 1804
Figure 4-2. Handshaking Sequence
Hardware Handshaking
Software Handshaking
Symbol is decoded.
RTS and CTS hand-
shaking lines used?
Unit asserts Request-To-Send line.
Host responds by asserting Clear-To-Send.
No response. After response time-
out time, the unit beeps 4 times to
indicate a transmission error.
ENQ switch on?
Yes
No
No response. After response time-
out time, the unit beeps 4 times to
indicate a transmission error.
Wait for ENQ character to
be received from host.
Data is transmitted.
ACK/NAK switch on?
Yes
No
Wait for ACK or NAK response from host.
ACK
response?
Yes
No
Yes
No
Try 3 times?
No
Yes.
4 long
beeps
No response. After response time-
out time, the unit beeps 4 times to
indicate a transmission error.
Finished
Содержание LT 1804
Страница 63: ...5 8 LT 1804 Product Reference Guide Parameter Menus Fixed Lengths For Code 2 of 5 Continued 0 1 2 3 4 ...
Страница 64: ...5 9 LT 1804 Product Reference Guide Parameter Menus Fixed Lengths For Code 2 of 5 Continued 9 8 6 7 5 ...
Страница 82: ...5 27 LT 1804 Product Reference Guide Parameter Menus Baud Rate Continued 4800 1200 2400 9600 ...
Страница 93: ...5 38 LT 1804 Product Reference Guide Parameter Menus Host Serial Response Timeout Continued 5 3 4 6 7 ...
Страница 102: ...5 47 LT 1804 Product Reference Guide Parameter Menus Prefix Continued 0 1 2 NONE STX ...
Страница 103: ...5 48 LT 1804 Product Reference Guide Parameter Menus Prefix Continued 5 3 4 6 7 ...
Страница 107: ...5 52 LT 1804 Product Reference Guide Parameter Menus Suffix Continued 2 0 1 3 ...
Страница 108: ...5 53 LT 1804 Product Reference Guide Parameter Menus Suffix Continued 5 4 6 7 ...
Страница 111: ...5 56 LT 1804 Product Reference Guide Parameter Menus Prefix Suffix Synapse Continued 0 1 2 3 4 ...
Страница 112: ...5 57 LT 1804 Product Reference Guide Parameter Menus Prefix Suffix Synapse Continued 5 6 7 8 9 CANCEL ...
Страница 114: ...5 59 LT 1804 Product Reference Guide Parameter Menus Communications Delays and Timeouts Continued 5 3 4 6 7 ...