- The CPU is a 32-bit RISC CPU and performs mainly hardware control,
TCP/IP protocol processing and applications such as http and FTP.
- The clock setting is 65.536MHz, which is the four times of 16.384MHz
oscillation in the X101 by PLL.
- There are two types of external bus: the General-purpose bus through
SRAM I/F and the bus for SDRAM only.
- The General-purpose bus is connected to a Flash Memory for program
storage.
- The capacity of the Flash Memory (IC101) is 32Mbit (2Mx16bit); the
program, the setting information for the network camera and the MAC
address are stored.
- The SDRAM (IC105) is 64Mbit (4Mx16bit) and used for the CPU
processing work, the communication data storage and the sound and
image data storage.
- The RESET IC (IC106) monitors the power supply voltage, detects the
rising edge of +3.3V and generates the Hardware ResetSignal.
- The IC302 is a RTC (Real Time Clock) and is used for the time setting of
the image transfer. It is backed up at power-off by a lithium battery
(BAT501). The I/F with the CPU has a dedicated controller. (5-line I/F)
- The Encryption block inside the IC103 is an IPsec communication
encryption engine and is used at the software protocol processing.
- The camera CPU (IC902) on video board is connected to the CPU (IC103)
through serial interface.
Signal Flow
1. When a request from the PC is received through LAN, the CGI
command is analyzed at the CPU and the requestedimage/sound data
are generated.
2. The JPEG image and sound data accumulated on the SDRAM are
formed in IP packet by the protocol processing.
3. If the IPsec is not encrypted, it is sent without change. If it is encrypted,
this is carried out in the Encryption Block and a header is added to
send to the Ethernet MAC part.
83
Summary of Contents for BB-HCM381CE
Page 4: ...Lens Board 4...
Page 5: ...Video Board CCD Board 5...
Page 25: ...1 Remove three Screws C And remove the Cabinet Cover 25...
Page 26: ...2 Remove the Screw B And remove the I O Board 26...
Page 29: ...3 Remove eight Screws A 4 Remove the Upper Tilt Cover And remove the Lower Tilt Cover 29...
Page 31: ...4 Remove the Tilt Belt 5 Remove the Tilt Block Ass y Camera Unit 31...
Page 38: ...When fix Lens Board by the Screws please use the jig not to shift Lens Guide Ass y 38...
Page 39: ...10 6 CCD UNIT 39...
Page 49: ...12 TROUBLE SHOUTING 12 1 STARTUP OPERATION 12 2 OTHER FUNCTION CHECK 49...
Page 50: ...12 3 IMAGES BLOCK CHECK 50...
Page 51: ...51...
Page 52: ...12 4 CAMERA UNIT CHECK 52...
Page 53: ...53...
Page 54: ...12 5 LENS PCB CHECK 54...
Page 55: ...55...
Page 56: ...12 5 1 ZOOM Operation Check 56...
Page 57: ...12 6 SOUND BLOCK CHECK 57...
Page 58: ...12 6 1 External Microphone 58...
Page 59: ...12 6 2 Speaker Output 12 6 3 Common Flow for External Microphone and Speaker Output 59...
Page 60: ...12 7 PAN TILT OPERATION CHECK 12 7 1 PAN Operation Check 60...
Page 61: ...12 7 2 TILT Operation Check 61...
Page 62: ...12 8 LAN BLOCK CHECK 62...
Page 63: ...12 9 SD CARD CHECK 63...
Page 64: ...64...
Page 65: ...12 10 POWER SUPPLY BLOCK CHECK 65...
Page 66: ...66...
Page 67: ...12 11 RTC CIRCUIT CHECK 67...
Page 68: ...12 12 I O TERMINAL CHECK 68...
Page 69: ...12 13 LED CIRCUIT CHECK 69...
Page 70: ...12 14 INITIALIZATION OPERATION CHECK 70...
Page 71: ...12 15 VERSION UPGRADE CHECK 71...
Page 94: ...19 ACCESSORIES AND PACKING MATERIALS 94...
Page 95: ...20 REPLACEMENT PARTS LIST Note 1 RTL Retention Time Limited 95...
Page 100: ...C129 ECJ0EF1C104Z 0 1 100...
Page 102: ...C212 ECJ0EC1H101J 100p 102...
Page 104: ...C273 ECJ0EF1C104Z 0 1 104...
Page 106: ...106...
Page 108: ...R104 ERJ3GEYJ101 100 108...
Page 110: ...R235 ERJ3EKF51R1 1 1 110...
Page 116: ...116...
Page 119: ...C939 ECJ0EC1H101J 100p 119...
Page 121: ...R819 ERJ2GEJ101 100 121...
Page 127: ...F501 D4FBR200A003 FUSE 127...
Page 133: ...IC1101 7 1 8 14 BB HCM381 CCD BOARD BOTTOM VIEW...
Page 143: ...C B A D E1 E2...
Page 144: ...F3 F2 G2 E3 F1 G1...
Page 145: ...I1 I2 I3 K1 K2 K3 K4 Tilt Scan L1 L2 M1 M2 H2 H3 H4 H5 J1 J2 J3...
Page 147: ...P6 P7 P8 P9 10Base Hub Connection Communicating Q R1 R2 S1 S2 S3 T1 P5...
Page 148: ...V W1 W3 W4 W2 X1 X2 X3 T2...
Page 149: ...X6 Y4 Y1 Y2 Y3 Z1 Z2 Z3 Z4 X4 X2 X3 X5...
Page 150: ...a1 a2 a3 b1 b2 b3 b4 Pan Scan...