Dukane Imagepro 8755e-Rj Portable Lcd Projector Users Manual
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35 Command Control via the Network Command Control Settings (Continued) When the authentication setting is enabled, the following settings are r\ equired. (20) ) Click [Security Settings] on the main menu. ) Click [Network Control] and enter the desired authentication password. * See Note . 9) Click the [Apply] button to save the settings. * See Note . • The Authentication Password will be the same for [Network Control Port1 (Port: 23)], [Network Control Port2 (Port: 9715)], and [Image Transfer Port (Port: 9716)]. NOTE1 • The new configuration settings are activated after restarting the network. Restart the network when any configuration settings are changed. The network connection can be restarted using [Network Restart] on the main menu. NOTE2
36 Command Control via the Network Command format Command formats differ among the different communication ports. TCP #23 You can use the RS-232C commands without any changes. The reply data format is the same as the RS-232C commands. However, the following reply will be sent back in the event of authentication failure when authentication is enabl\ ed. ReplyError code 0x1F0x040x00 TCP #9715 Send Data format The following formatting is added to the header (0x02), Data length (0x0D), Checksum (1byte) and Connection ID (1 byte) of the RS-232C commands. HeaderData lengthRS-232CcommandChecksumConnection ID 0x020x0D13 bytes byte byte Header → 0x02, Fixed Data length → RS-232C commands byte length (0x0D, Fixed) RS-232C commands → RS-232C commands that start with 0xBE 0xEF (13 bytes) Check Sum → This is the value to make zero on the addition of the lower bits from the header to the checksum. Connection ID → Random value from 0 to 255 (This value is attached to the reply data)
37 Command Control via the Network Reply Data format The connection ID (the data is same as the connection ID data on the se\ nding data format) is attached to the RS-232C commands reply data. ReplyConnection ID 0x06 byte ReplyConnection ID 0x15 byte ReplyError codeConnection ID 0x1C bytes byte ReplyDataConnection ID 0x1D bytes byte ReplyStatus codeConnection ID 0x1F bytes byte ReplyAuthentication Error codeConnection ID 0x1F0x040x00 byte
38 Command Control via the Network Automatic Connection Break The TCP connection will be automatically disconnected after there is no communication for 30 seconds after being established. Authentication The projector does not accept commands without authentication success when authentication is enabled. The projector uses a challenge response type authentication with an MD5 (Message Digest 5) algorithm. When the projector is using a LAN, a random eight bytes will be returned\ if authentication is enabled. Bind this received bytes and the authentication password and digest this data with the MD5 algorithm and add this in front of the commands to send. Following is a sample if the authentication password is set to “passw\ ord” and the random eight bytes are “a572f60c”. ) Select the projector. 2) Receive the random eight bytes “a572f60c” from the projector . 3) Bind the random eight bytes “a572f60c” and the authentication password “password” and it becomes “a572f60cpassword”. 4) Digest this bind “a572f60cpassword” with MD5 algorithm. It will be “e3d97429adffa11bce1f7275813d4bde”. 5) Add this “e3d97429adffa11bce1f7275813d4bde” in front of the commands and send the data. Send “e3d97429adffa11bce1f7275813d4bde”+command. 6) When the sending data is correct, the command will be performed and the reply data will be returned. Otherwise, an authentication error will be returned.
Dukane Corporation Audio Visual Products Division 2900 Dukane Drive St. Charles, IL 60174-3395 E-mail: [email protected]: (630) 762-4040 Orders: (800) 676-2485 Fax: (630) 584-5156 Parts & Service: (800) 676-2487 Fax: (630) 584-0984 Audio Visual Products Part # 401-8776/8776RJ-01