NEC NP-V260X RS232 codes- Projectors - Page 5

HT/LT/NP40/VT70/VT80/VT90/WT ]

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[ HT/LT/NP40/VT70/VT80/VT90/WT ] The PC CONTROL connector is a mini DIN 8-pin connector. 1 To TxD of PC 2 3 4 To GND of PC 5 6 7 To RxD of PC 8 * 2, 3, 5, 6, and 8 are used inside the projector. [ GT/LT80/MT/NP1000/VT (except VT70/VT80/VT90)/NP3150/NP905/NP600/NP4000/NP3250/NP610/NP2200/NP216/M300/P420/U300/V300 ] The PC CONTROL connector is a D-SUB 9-pin connector. 1 2 To TxD of PC 3 To RxD of PC 4 5 To GND of PC 6 7 To CTS of PC 8 To RTS of PC 9 4. Communication Frame On the LT/MT/SX/GT series projectors communication is done in a frame composed of header, data, and checksum. The frame sent from the controller to the projector is referred to as a command, and the one sent from the projector to the command as an reply is referred to as a response. The response has two types; Acknowledge (hereafter referred to as ACK) that recognizes a command and Negative Acknowledge (hereafter referred to as NAK) that fails to recognize a command. Command | | | Controller | | Projector | | | Response (ACK or NAK) 4-1. Frame Format One frame comprises a header, a data portion, and a checksum. Frame Format: | Header portion | Data portion |Checksum| | | (Max. 4095 Bytes) | |

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[ HT/LT/NP40/VT70/VT80/VT90/WT ]
The PC CONTROL connector is a mini DIN 8-pin connector.
1
To TxD of PC
2
3
4
To GND of PC
5
6
7
To RxD of PC
8
* 2, 3, 5, 6, and 8 are used inside the projector.
[ GT/LT80/MT/NP1000/VT (except
VT70/VT80/VT90)/NP3150/NP905/NP600/NP4000/NP3250/NP610/NP2200/NP216/M300/P420/U300/V300 ]
The PC CONTROL connector is a D-SUB 9-pin connector.
1
2
To TxD of PC
3
To RxD of PC
4
5
To GND of PC
6
7
To CTS of PC
8
To RTS of PC
9
====================================================================
4. Communication Frame
----------------------------------------------------------------------
On the LT/MT/SX/GT series projectors communication is done in a frame
composed of header, data, and checksum.
The frame sent from the controller to the projector is referred to as
a command, and the one sent from the projector to the command as an
reply is referred to as a response.
The response has two types; Acknowledge (hereafter referred to as ACK)
that recognizes a command and Negative Acknowledge (hereafter referred
to as NAK) that fails to recognize a command.
+--------------+
Command
+--------------+
|
|-------------->|
|
| Controller
|
|
Projector
|
|
|<--------------|
|
+--------------+
Response
+--------------+
(ACK or NAK)
4-1. Frame Format
**********************************************************************
One frame comprises a header, a data portion, and a checksum.
Frame Format:
+-------------------------------+----------------------+--------+
|
Header portion
|
Data portion
|Checksum|
|
|
(Max. 4095 Bytes)
|
|