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Sony FCB-EX45MC, Техническое руководство

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Sony FCB-EX45MC Скачать руководство пользователя страница 33

33

Basic Functions

Other

s

External Sync

hr

onization

Mode

Power Off

Initializing

Power On

Freeze On

MemRecall

External Lock Mode

××

aa

a

V-Phase Up/Down/Stop/Reset

××

aa

a

V-Phase Direct

××

aa

a

V-Phase Phase Turnover Setting

××

aa

a

Mode

Power Off

Initializing

Power On

Freeze On

MemRecall

Aperture Setting

××

a

××

LR_Reverse On/Off

××

a

××

Picture Effect Setting

××

a

××

Display On/Off

××

aa

a

Mute On/Off

××

aa

a

Title Setting

××

aa

a

Privacy Zone On/Off/Clear

××

aa

a

Privacy Zone Setting

××

aa

a

Key Lock On/Off

××

aa

a

ID Write

××

aa

a

Содержание FCB-EX45MC

Страница 1: ... 2005 Sony Corporation Black and White Color Camera Module FCB EX45MC EX45MCC A CCB 100 11 1 Technical Manual ...

Страница 2: ...5 Basic Functions 6 Overview of Functions 6 Spectral Sensitivity Characteristics 28 Eclipse 28 Vibration Specifications 28 Initial Settings Custom Preset and Backup 29 Mode Condition 31 Command List 34 VISCA RS 232C Commands 34 FCB Camera Commands 40 Specifications 53 ...

Страница 3: ...y when using the digital zoom VISCA is a communications protocol which enables the camera to be controlled remotely by commands from a host computer controller Six memory locations are provided to temporarily save and recall up to six sets of camera settings Enhanced privacy zone masking max 24 blocks Alarm function With consideration given to environmental protection this module is designed to op...

Страница 4: ...use or store the camera in the following extreme conditions Extremely hot or cold places operating temperature 0 C to 40 C 32 F to 104 F Close to generators of powerful electromagnetic radiation such as radio or TV transmitters Where it is subject to fluorescent light reflections Where it is subject to unstable flickering etc lighting conditions Where it is subject to strong vibration Care of the ...

Страница 5: ...ns 2 CN992 connector 3 TELE button 4 WIDE button 5 Tripod screw holes When a tripod is used please use 10 mm 13 32 in screws to attach it to the camera Also please be sure to attach the tripod securely Front Rear Bottom Left side ...

Страница 6: ...ress set VISCA is a protocol which normally can support a daisy chain of up to seven attached devices However the FCB camera does not support camera connections in a daisy chain Therefore whenever a camera is connected for the first time be sure to use the address set to confirm the address ID Write Sets the camera ID Mute Blanks the screen and sends out a synchronizing signal Lens Initialization ...

Страница 7: ...focus position to maximize the high frequency content of the picture in a center measurement area taking into consideration the high luminance and strong contrast components Normal AF Mode This is the normal mode for AF operations Interval AF Mode The mode used for AF movements carried out at defined intervals The time intervals for AF movements and for the timing of the stops can be set in one se...

Страница 8: ...10 000 s The iris and gain are set automatically according to the brightness of the subject Note When the shutter speed 1 1 s or 1 2 s is used Auto Focus and White Balance may not function fully AE Iris Priority The iris can be set freely by the user to 18 steps between F1 4 and Close The gain and shutter speed are set automatically according to the brightness of the subject AE Manual The shutter ...

Страница 9: ...vels are determined In Spot AE a particular section of the subject can be designated and then that portion of the image can be weighted and a value computed so that Iris and Gain can be optimized to obtain an image For example in an image with a lot of movement and with varying levels of brightness portions without much change can be designated as such a spot and changes to the screen can be minim...

Страница 10: ...t function is provided Others Mirror Image This function reverses the video output from the camera horizontally Memory Position Preset Using the position preset function 6 sets of camera shooting conditions can be stored and recalled This function allows you to achieve the desired status instantly even without adjusting the following items each time Zoom Position Digital Zoom On Off Focus Auto Man...

Страница 11: ...e frequency of the input signal synchronizes to within 1Hz of the external synchronization Also V Phase phase adjustment can be carried out to within 90 degrees due to the V Lock phase adjustment In addition 360 degree phase adjustment is possible because you can switch between 0 degree and 180 degree phases Because V Lock synchronization is a simple synchronization method color signals like a VBS...

Страница 12: ...set on up to 24 places according to Pan Tilt positions Mask can be displayed on 8 places per screen simultaneously Privacy Zones are displayed according to priority in alphabetical order Individual on off zone masking settings Two colors from among 28 colors can be individually set for each of 24 privacy zones Interlocking control with zooming Interlocking control with Pan Tilt Non interlocking co...

Страница 13: ...Inquiry Command Command Packet Inquiry Packet Comments CAM_Privacy DisplayInq 8x 09 04 77 FF y0 50 pp pp pp pp FF Inquiry about the status of Setting Mask Display On Off See pp pp pp pp Mask bit in Parameters on page 14 1 On 0 Off CAM_PrivacyPan TiltInq 8x 09 04 79 FF y0 50 0p 0p 0p 0q 0q 0q FF Inquiry about the pan tilt position currently set See Setting pan tilt angle in Parameters on page 14 pp...

Страница 14: ... Gray6 06h 16h White 07h 17h Red 08h 18h Green 09h 19h Blue 0Ah 1Ah Cyan 0Bh 1Bh Yellow 0Ch 1Ch Magenta 0Dh 1Dh Setting pan tilt angle Angle Parameter of Angle ppp qqq Set the angle resolution to 360 degree 4096 1000h mm Mask setting list Mask Name mm Hex Mask_M 0Ch Mask_N 0Dh Mask_O 0Eh Mask_P 0Fh Mask_Q 10h Mask_R 11h Mask_S 12h Mask_T 13h Mask_U 14h Mask_V 15h Mask_W 16h Mask_X 17h Note The pri...

Страница 15: ...mended that you set the size to at least twice the size of the object height and width Set Display Command 8x 01 04 77 pp pp pp pp FF Parameter pp pp pp pp Each 24 Privacy Zones correspond with the BIT See pp pp pp pp Mask bit in Parameters on page 14 qq Set the color code include the semi transparency code rr Set the color code include the semi transparency code See qq rr Color code in Parameters...

Страница 16: ...t when object stops moving However when the mode is set to DAY NIGHT the High level signal is output for dark and the Low level signal is output for bright The Detect signal goes out through the serial command VISCA communication line Example 1 A door is motionless so the Detect Level is Low 2 At the moment when the door is opened by someone the Detect Level goes to High 3 The Detect Level is High...

Страница 17: ...n is memorized and the detect signal becomes Low 02 Set the internal AE Level When AE movement is detected the detect signal is High When AE Level goes back to the previous level the detect signal is Low 03 Set a fixed period of time When AE Level does not change during this time the AE value is memorized as a rest value and the detect signal is Low When AE value changes the detect signal is High ...

Страница 18: ...steresis Set to the factory preset Alarm On Focus Position into memory AE moves Focus moves outside of the hysteresis High level signal output Repeat this loop until Alarm off Focus goes back to the previous position Low level signal output Far Near Focus Position Hysteresis High Low ...

Страница 19: ...ves Hysteresis is set to the factory preset Focus moves outside of the hysteresis High level signal output Repeat this loop until Alarm off AE does not move for a period of time AE does not move for a period of time Low level signal output Update the Focus position data ...

Страница 20: ...Set to the factory preset Alarm On AE Level into memory AE moves AE moves outside of the hysteresis High level signal output Repeat this loop until Alarm off AE goes back to the previous level Low level signal output AE Level Bright Dark Hysteresis Low High ...

Страница 21: ...oves Hysteresis is set to the factory preset AE moves outside of the hysteresis High level signal output Repeat this loop until Alarm off AE does not move for a period of time AE does not move for a period of time Low level signal output Update the AE level data ...

Страница 22: ...etails of Mode 01 03 T1 T2 T3 T1 T1 Alarm ON Hysteresis Focus Pos AE Level Reset T1 Reset interval timer 5sec T2 Detect timer 2sec T3 High level signal count timer 2sec Signal level Low High Low T1 T2 T3 Reset Reset Reset ...

Страница 23: ...23 Basic Functions Mode 04 Mode 05 High output result of mode 00 High output result of mode 02 High output High output result of mode 00 High output result of mode 03 High output Low output Low output ...

Страница 24: ...24 Basic Functions Mode 06 Mode 07 High output result of mode 01 High output result of mode 02 High output High output result of mode 01 High output result of mode 03 High output Low output Low output ...

Страница 25: ... of mode 00 High output result of mode 02 High output result of mode 02 High output High output result of mode 00 High output result of mode 03 High output result of mode 03 High output High output Low output High output High output High output Low output ...

Страница 26: ... of mode 01 High output result of mode 02 High output result of mode 02 High output result of mode 01 High output result of mode 03 High output result of mode 03 High output High output High output Low output High output High output High output Low output ...

Страница 27: ...distinction between Day and Night AE move Yes Brightness is higher than Day AE level No Yes High level signal output Brightness is higher than Night AE level No Yes Low level signal output Low level signal output Bright Dark Day AE level Night AE level Setting the period time t to the factory preset Signal level Low High Low Hysteresis ...

Страница 28: ... Z directions for 20 minutes in each direction The camera vibration specification is to have no malfunction after this test Power spectrum density Effective overall value Test time 5 to 50 Hz 4 14 m2 s3 0 043 G2 Hz 50 to 100 Hz 36 dB oct 14 3 m s2 1 46 G 20 minutes 3 1 2 11 13 1 5 9 14 18 Spectral Sensitivity Characteristics Eclipse When designing the housing refer to the dimensional allowance as ...

Страница 29: ...Position Initial settings Custom Standby preset backup Zoom Position Wide end a a D Zoom On Off On a a D Zoom Separate Combine Combine a a D Zoom Position 00h a a Focus Position a a Focus Auto Manual Auto a a Near Limit Setting 8000h 29cm a a AF Sensitivity Normal a a AF Mode Normal a a AF Run Time 5 sec a a AF Interval 5 sec a a AE Mode Full Auto a a Shutter Position 1 60sec NTSC 1 50sec PAL a a ...

Страница 30: ...sk Color Setting a a Alarm On Off Off a a Alarm Mode a a Alarm Detect Level a a Privacy Zone On Off Off a a Privacy Zone Setting a a Key Lock On Off Off a a Camera ID 0000h a a External Lock Mode Internal a a V Phase Vsync edge position a a V Phase Phase Inversion No inversion a a Note The number of times data can be written to EEPROM by executing Custom Preset is limited ...

Страница 31: ...rect a a a a a Focus Far Near Stop a a Focus Direct a a a Focus Auto Manual a a a One Push AF a a Focus Infinity a a a Focus Near Limit a a a AF Sensitivity Normal Low a a a a a AF Mode Norm Interval Zoom a a a a a AF Activation Time Interval Setting a a a a a Camera Memory Set Reset a a a Camera Memory Recall a a a a a Lens Initialization a a a Comp Scan a a a a during recalling from key Mode Pow...

Страница 32: ... Full Auto a a a a a a AE Manual a a a a a a Shutter Priority a a a a a a Iris Priority a a a a a a Bright a a a a Shutter Setting a a a Iris Setting a a a Gain Setting a a Bright Setting a a Exposure Compensation On Off a a a a a a Exposure Compensation Setting a a a a a a Backlight On Off a a SpotAE On Off a a a a a a SpotAE Setting a a a a a a ...

Страница 33: ...Stop Reset a a a V Phase Direct a a a V Phase Phase Turnover Setting a a a Mode Power Off Initializing Power On Freeze On MemRecall Aperture Setting a LR_Reverse On Off a Picture Effect Setting a Display On Off a a a Mute On Off a a a Title Setting a a a Privacy Zone On Off Clear a a a Privacy Zone Setting a a a Key Lock On Off a a a ID Write a a a ...

Страница 34: ...OL AND COMMAND LIST MAY CAUSE MALFUNCTION OR DAMAGE TO HARDWARE AND SOFTWARE USED WITH IT INCLUDING SONY HARDWARE AND SOFTWARE AND SPECIFICALLY DISCLAIMS ANY LIABILITY FOR ANY SUCH MALFUNCTION OR DAMAGE THIS CONTROL PROTOCOL AND COMMAND LIST SHOULD BE USED WITH CAUTION 1 VISCA is a protocol which controls consumer camcorders developed by Sony VISCA is a trademark of Sony Corporation Overview of VI...

Страница 35: ...ss 2 is A0H Some of the commands for setting cameras can be sent to all devices at one time broadcast In the case of broadcast the header should be hexadecimal 88H When the terminator is FFH it signifies the end of the packet Command and Inquiry Command Sends operational commands to the FCB camera Inquiry Used for inquiring about the current state of the FCB camera Command Packet Note Inquiry 8X Q...

Страница 36: ...messages are sent to the FCB camera it is normal to send the next command message after waiting for the completion message or error message to return However to deal with advanced uses the camera has two buffers memories for commands so that up to two commands including the commands currently being executed can be received When the camera receives commands it notifies the sender which command buff...

Страница 37: ...work Change X0 38 FF X 9 to F FCB camera address 8 VISCA Interface Command IF_Clear Clears the command buffers in the FCB camera and cancels the command currently being executed Command Packet Reply Packet Note IF_Clear 8X 01 00 01FF X0 50 FF IF_Clear broadcast 88 01 00 01 FF 88 01 00 01 FF X 1 to 7 FCB camera address For inquiry packet X 9 to F FCB camera address 8 For reply packet VISCA Interfac...

Страница 38: ...0 6y 04 FF Command Canceled z0 6y 05 FF No Socket Comments Returns ACK when a command has been accepted and Completion when a command has been executed Accepted a command which is not supported or a command lacking parameters There are two commands currently being executed and the command could not be accepted Could not execute the command in the current mode ACK is not returned for the inquiry co...

Страница 39: ... illegal command parameters is accepted Indicates that two sockets are already being used executing two commands and the command could not be accepted when received Returned when a command which is being executed in a socket specified by the cancel command is canceled The completion message for the command is not returned Returned when no command is executed in a socket specified by the cancel com...

Страница 40: ... Direct 8x 01 04 46 00 00 0p 0q FF pq D Zoom Position CAM_Focus Stop 8x 01 04 08 00 FF Far Standard 8x 01 04 08 02 FF Near Standard 8x 01 04 08 03 FF Far Variable 8x 01 04 08 2p FF p 0 Low to 7 High Near Variable 8x 01 04 08 3p FF Direct 8x 01 04 48 0p 0q 0r 0s FF pqrs Focus Position Auto Focus 8x 01 04 38 02 FF AF ON OFF Manual Focus 8x 01 04 38 03 FF Auto Manual 8x 01 04 38 10 FF One Push Trigge...

Страница 41: ...FF Direct 8x 01 04 4B 00 00 0p 0q FF pq Iris Position CAM_Gain Reset 8x 01 04 0C 00 FF Gain Setting Up 8x 01 04 0C 02 FF Down 8x 01 04 0C 03 FF Direct 8x 01 04 4C 00 00 0p 0q FF pq Gain Position CAM_Bright Reset 8x 01 04 0D 00 FF Bright Setting Up 8x 01 04 0D 02 FF Down 8x 01 04 0D 03 FF Direct 8x 01 04 4D 00 00 0p 0q FF pq Bright Position CAM_ExpComp On 8x 01 04 3E 02 FF Exposure Compensation ON ...

Страница 42: ... 7F FF CAM_MemSave Write 8x 01 04 23 0X 0p 0p X 00 to 07 Address Total 16 Byte 0q 0q FF ppqq 0x0000 to 0xFFFF Data CAM_Display On 8x 01 04 15 02 FF Display ON OFF 8x 01 06 06 02 FF Off 8x 01 04 15 03 FF 8x 01 06 06 03 FF On Off 8x 01 04 15 10 FF 8x 01 06 06 10 FF CAM_Title Title Set1 8x 01 04 73 00 mm nn pp mm Vposition nn Hposition qq 00 00 00 00 00 00 FF pp Color qq Blink Title Set2 8x 01 04 73 ...

Страница 43: ..._KeyLock Off 8x 01 04 17 00 FF Camera Control Enable Disable On 8x 01 04 17 02 FF CAM_IDWrite 8x 01 04 22 0p 0q 0r 0s FF pqrs Camera ID 0000 to FFFF CAM_ExternalLock INT 8x 01 04 55 00 FF Internal mode Line Lock 8x 01 04 55 01 FF Line Lock mode CAM_VPhase Stop 8x 01 04 05 00 FF Up 8x 01 04 05 02 FF Down 8x 01 04 05 03 FF Up Step 8x 01 04 05 2p FF p step 1 7 Down Step 8x 01 04 05 3p FF Reset 8x 01 ...

Страница 44: ... 09 04 57 FF y0 50 00 FF Normal AF y0 50 01 FF Interval AF y0 50 02 FF Zoom Trigger AF CAM_AFTimeSettingInq 8x 09 04 27 FF y0 50 0p 0q 0r 0s FF pq Movement Time rs Interval CAM_AEModeInq 8x 09 04 39 FF y0 50 00 FF Full Auto y0 50 03 FF Manual y0 50 0A FF Shutter Priority y0 50 0B FF Iris Priority y0 50 0D FF Bright CAM_ShutterPosInq 8x 09 04 4A FF y0 50 00 00 0p 0q FF pq Shutter Position CAM_IrisP...

Страница 45: ...0 0p 0p 0p 0q 0q 0q 0r 0r 0r 0r FF mm Mask Settings ppp Pan qqq Tilt rrrr Zoom CAM_PrivacyMonitorInq 8x 09 04 6F FF y0 50 pp pp pp pp FF pp pp pp pp Mask is displayed now CAM_KeyLockInq 8x 09 04 17 FF y0 50 00 FF Off y0 50 02 FF On CAM_IDInq 8x 09 04 22 FF y0 50 0p 0q 0r 0s FF pqrs Camera ID CAM_ExternalLockModeInq 8x 09 04 55 FF y0 50 00 FF Internal Mode y0 50 01 FF Line Lock Mode CAM_VPhaseSetIn...

Страница 46: ...ocus Position HL 1 0 7 0 6 0 5 0 10 4 0 3 2 Focus Position LH 1 0 7 0 6 0 5 0 11 4 0 3 2 Focus Position LL 1 0 Block Inquiry Command List Lens Control System Inquiry Commands Command Packet 8x 09 7E 7E 00 FF Byte Bit Comments 7 0 6 0 5 0 12 4 0 3 0 2 0 1 0 0 0 7 0 6 0 5 DZoomMode 0 Combine 1 Separate 13 4 0 Normal 1 Interval 3 2 Zoom Trigger 2 AF Sensitivity 0 Slow 1 Normal 1 Digital Zoom 1 On 0 O...

Страница 47: ... 0 7 0 6 0 5 0 7 4 0 3 2 Aperture Gain 1 0 7 0 6 0 5 0 8 4 3 2 Exposure Mode 1 0 7 0 6 0 5 0 9 4 0 3 Spot AE 1 On 0 Off 2 Back Light 1 On 0 Off 1 Exposure Comp 1 On 0 Off 0 Slow Shutter 1 Auto 0 Manual 7 0 6 0 5 0 10 4 3 2 Shutter Position 1 0 7 0 6 0 5 0 11 4 3 2 Iris Position 1 0 Camera Control System Inquiry Commands Command Packet 8x 09 7E 7E 01 FF 7 0 6 0 5 0 12 4 0 3 2 Gain Position 1 0 7 0 ...

Страница 48: ...0 0 0 7 0 6 0 5 0 7 4 0 3 0 2 0 1 0 0 0 7 0 6 0 5 0 8 4 0 3 2 Camera ID HH 1 0 7 0 6 0 5 0 9 4 0 3 2 Camera ID HL 1 0 7 0 6 0 5 0 10 4 0 3 2 Camera ID LH 1 0 7 0 6 0 5 0 11 4 0 3 2 Camera ID LL 1 0 Byte Bit Comments Other Inquiry Commands Command Packet 8x 09 7E 7E 02 FF 7 0 6 0 5 External Lock 1 Provided 0 Not provided 12 4 Memory 1 Provided 0 Not provided 3 Clock 1 Provided 0 Not provided 2 ICR ...

Страница 49: ... Time L 1 0 Byte Bit Comments 7 0 6 0 5 0 6 4 0 3 2 AF Interval Time H 1 0 7 0 6 0 5 0 7 4 0 3 2 AF Interval Time L 1 0 7 0 6 0 5 0 8 4 0 3 2 SpotAE Position X 1 0 7 0 6 0 5 0 9 4 0 3 2 SpotAE Position Y 1 0 7 0 6 0 5 0 10 4 0 3 0 2 0 1 Alarm 1 On 0 Off 0 Picture flip 1 On 0 Off Byte Bit Comments 7 0 6 0 5 0 11 4 0 3 0 2 Advanced Privacy 1 Provided 0 Not provided 1 Alarm 1 Provided 0 Not provided ...

Страница 50: ...0 0E 725 600 0D 500 425 0C 350 300 0B 250 215 0A 180 150 09 125 120 08 100 100 07 90 75 06 60 50 Iris 11 F1 4 10 F1 6 0F F2 0 0E F2 4 0D F2 8 0C F3 4 0B F4 0 0A F4 8 09 F5 6 08 F6 8 07 F8 0 06 F9 6 05 F11 04 F14 03 F16 02 F19 01 F22 00 CLOSE Gain 0F 28 dB 0E 26 dB 0D 24 dB 0C 22 dB 0B 20 dB 0A 18 dB 09 16 dB 08 14 dB 07 12 dB 06 10 dB 05 8 dB 04 6 dB 03 4 dB 02 2 dB 01 0 00 3 dB ...

Страница 51: ...0 5 dB 0D 6 9 dB 0C 5 7 5 dB 0B 4 6 dB 0A 3 4 5 dB 09 2 3 dB 08 1 1 5 dB 07 0 0 dB 06 1 1 5 dB 05 2 3 dB 04 3 4 5 dB 03 4 6 dB 02 5 7 5 dB 01 6 9 dB 00 7 10 5 dB Zoom Ratio and Zoom Position for reference Zoom Ratio Optical Zoom 18 Lens Position Data 1 0000 2 1606 3 2151 4 2860 5 2CB5 6 3060 7 32D3 8 3545 9 3727 10 38A9 11 3A42 12 3B4B 13 3C85 14 3D75 15 3E4E 16 3EF7 17 3FA0 18 4000 Digital Zoom D...

Страница 52: ...ill differ due to Focus Near 6000 1 m temperature characteristics Limit 7000 80 cm etc use as approximate 8000 29 cm values 9000 10 cm The lower 1 byte is fixed A000 4 7 cm at 00 B000 2 3 cm C000 1 0 cm R B gain 00 FF Aperture 00 0F 00 01 02 03 04 05 06 07 A B C D E F G H 08 09 0a 0b 0c 0d 0e 0f I J K L M N O P 10 11 12 13 14 15 16 17 Q R S T U V W X 18 19 1a 1b 1c 1d 1e 1f Y Z 1 2 20 21 22 23 24 ...

Страница 53: ...al External V Lock Min illumination 0 01 lx F1 4 1 60 s EIA or 1 50 s CCIR Recommended illumination 100 to 100 000 lx S N ratio 50 dB or more Back light compensation ON OFF Electronic shutter speed FCB EX45MC 1 60 to 1 10 000 s 16 steps FCB EX45MCC 1 50 to 1 10 000 s 16 steps Gain Auto Manual 3 to 28 dB 2 dB steps Aperture control 16 steps Preset 6 POSITIONS Serial interface VISCA protocol TTL CMO...

Страница 54: ... 32 in or less form the bottom surface 1 4 20UNC Tripod screw for camera 20 0 1 13 16 50 131 32 25 31 32 25 31 32 57 5 2 1 4 30 1 3 16 27 5 1 1 8 20 0 1 13 16 5 7 32 15 19 32 20 0 1 25 32 7 M2 8 M2 53 23 32 14 0 1 9 16 27 0 1 1 1 16 16 0 1 5 8 36 113 32 40 2 119 32 29 0 1 15 32 33 0 1 15 16 88 5 31 2 10 13 32 48 3 0 1 129 32 5 7 32 39 8 15 8 25 4 0 1 1 21 0 1 13 16 10 13 32 73 0 1 27 8 4 M2 85 2 3...

Страница 55: ...8V high min 2 0V Read Data 2 TxD CMOS 5V low max 0 1V high min 4 4V Send Data 3 GND for RxD TxD 4 DC IN 9 0V 3V 5 GND for DC IN 6 VBS OUT 1 0V 0 2V 7 GND for VBS OUT 8 V LOCK PULSE External VD Lock Pulse EX FV Negative 3Vp p 50 duty 9 GND VL PULSE CN992 3V 0 5V 60Hz 1Hz min 1 µs ideal value 50 Duty RxD TxD Positive TTL level ...

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