Transmission Method; Half-Duplex - Hitachi CP-X2011N Operating Manual

6. Network Bridge Function

6.4 Transmission method

The transmission method can be selected from the menus, only when the
NETWORK BRIDGE is selected for the COMMUNICATION TYPE.
( OPTION menu – SERVICE – COMMUNICATION in the User's Manual –
Operating Guide)

HALF-DUPLEX

6.4.1 HALF-DUPLEX
This method lets the projector make two way communication, but only one
direction, either transmitting or receiving data, is allowed at a time.
The method does not allow the projector to receive the data from the computer
while waiting for response data from an external device. After the projector
receives the response data from an external device or the response limit time is
past, the projector can receive the data from the computer.
That means that the projector controls transmitting and receiving the data to
synchronize the communication.
To use the HALF-DUPLEX method, set up the RESPONSE LIMIT TIME following
the instructions below.
TCP/IP data
Computer
Transmitting data
Discarding data
Using the RESPONSE LIMIT TIME menu, set the waiting time for response data
from an external device. (
in the User's Manual – Operating Guide)
OFF 1s
76
FULL-DUPLEX
Protocol change
Ethernet
LAN cable
Response data
OPTION menu – SERVICE – COMMUNICATION
2s 3s ( OFF)
Serial data
RS-232C
RS-232C cable
Transmitting data
Response limit
time
Response data
Transmitting data
External device