l OB9233D can implement multilevel digital cascade via single core fiber, The video channels of single wavelength cascade are up to 16 channels, the total capability of single fiber can be up to 128 channels if adopting CWDM to insert wavelength。Remote node video input channel can be 1 to 128 channel. Central receiver video output channel can be 1 to 128 channel. Every link of single wavelength can set up 16 nodes, Single link can be up to 128 nodes if adopting CWDM. Every node can be configurated multi-channel RS422/RS485/RS232 data, multi-channel audio, multi-channel contact closure, 10M/100M Ethernet, E1, telephone, Intercom.
l Single wavelength adopts digital cascade technology, insert video in digital domain directly
l Multiple wavelength adopts CWDM technology to insert wavelength
l Exceeded the RS250C standard for SNR, DG and DP
l Bandwidth reaching 7.5MHz, SNR≥67dB
l The video quality is independent of transmission distance in the allowable extent of optical power 10 bit digital PCM video coding
l Compatible with NTSC, PAL, SECAM
l Support OB standard network management system
l 18 bit digital audio, 75dB SNR
l RS232, RS422, RS485 or Manchester data
l Data transmission rate DC～256kbps
l High-speed optical fiber digital transmission technology
l Super optical dynamic range, 0Km is not saturated
l Power supply, fiber link, data state indication
l Surface mount technology (SMT)
l Rack-mount/stand-alone/19" 1U enclosure.
l TV and broadcast system
l Expressway monitoring/communication system
l City intelligent traffic monitoring/communication system
l Electric power security monitoring system
l Water conservancy security monitoring system
Security monitoring system in large-scale enter
Optical specification
Wavelength：1310/1470/1490/1510/1530/1550/1570/1590/1610nm
Optical output power：-15dBm－2dBm
Receiving sensitivity：≤-26dBm
Single wavelength bandwidth：1.25G/2.5G
CWDM specification
Central wavelength：1471/1491/1511/1531/1551/1571/1591/1611 nm
Channel interval：20nm
Channel bandwidth：±6.5 nm
Channel flatness：≤0.3dB
Insertion loss：≤1.0 ~3.5
Channel isolation：≥18
Return loss：≥48 dB
Video
Video Channel：1~128
Video Format：NTSC，PAL，SECAM
Voltage：1Vp-p，75Ω
Max-input voltage：1.5Vp-p，75Ω
Bandwidth：10MHz
Differential Gain：≤1%
Differential Phase：≤1°
Video SNR：≥67dB
Encoding：10BIT PCM
Connector：BNC
Audio
Channel Number：Optional
Insert plus：-0.1dB
Frequency Response：50Hz - 20kHz
Audio input/output impedance:100KΩ/3KΩ(unbalanced)
Audio max-input/output voltage：3.5VP-P (unbalanced)
Audio distortion：≤0.25%
Audio SNR：≥75dB
Audio coding mode：18-bit digital audio
Sample resolution：48k
RS232 Data
Standard：E1A/TIA-232E，CCITV.28
ESD protect：±15KV body static
±8KV IEC1000-4-2 contact discharge
±8KV IEC1000-4-2 discharge by air
Baud Rate： 0－115.2KB
Bit error rate：10-9
RS-422/485 Data
Standard：TIA/EIA-422-B,TIA/EIA-485-A,ITUV1.1
ESD protect：±15KV body static
±8KV IEC1000-4-2 contact discharge
±8KV IEC1000-4-2 discharge by air
Baud Rate：0－115.2KBPS
Bit error rate：10-9
Contact closure signal
Input/output：relay interface
Interface：RJ45
Ethernet data
Standard：IEEE802.3
Port No. rate：10M/100M adaptive
Port No.：1－4 10M/100M exchange port
E1 signal
Interface：Complies with ITU-TG.703
Data Rate：2.048Mbps
Circuitry code type：HDB3
Interface impedance：75Ω//120Ω/
Interface type：BNC (75Ω/)，RJ45(120Ω/)
Telephone channel
Telephone port：accord with GB3378-82
Relay port：accord with GB3971-83
System parameter
MTBF>100,000 hours
System bit error rate：better than 10-9
Indicator light system：
Circulation indicator light,
Video lost detection indicator light,
Fiber link indication light
Electricity features
Power：
OB9233DTR(xVxD)-XX-XX-X-A
Input: +5.5v-6VDC
Sources: plug-in frame backplane, 96-Pin interface
OB9233DTR(xVxD)-XX-XX-X-B
Input: +5.5v-6VDC
Sources: Power adapter, 5-pin self-lock interface
OB9233DTR(xVxD)-XX-XX-X-C
Input: +5.5v-6VDC
Sources: mains supply
Power consumption：6W
Mechanism features
OB9233DTR(xVxD)-XX-XX-X-A
Rack-mount，OB18 box
Dimension：442X178X222
Weight：3.5Kg
Material：section aluminum
Surface disposal：sandblast oxidation
Color：silver gray
OB9233DTR(xVxD)-XX-XX-X-B
Stand-alone, OB4A box
Dimension：160X202X85
Weight：1.5Kg
Material：section aluminum
Surface disposal：sandblast oxidat
Environment
Operating temperature：－40℃～74℃
Storage temperature：－55℃～85℃
Humidity ：0~95% non-condensing
Electromagnetism compatibility
Accord with GJB151A-97、SC
Operating state indication
OB9233DT
POWER ：Power indicator
LINK-UP-R：Up-link transmitting lock
LINK-UP-T: Up-link receiving lock
VIDEO: First video indicator
DATA：Data indicator
OB9233DR
POWER：Power indicator
LINK：Receiving lock
VIDEO: First video indicator
DATA：Data indicator
Network management system function
Fiber link state detection
Video channel detection
Remote node operating state detection(including operating temperature, voltage and so on)
Center receiver operating state detection
Channel collocation
Video/data channel configuration
In production model “（xVxD）”refers to video and data channel configuration.
e.g.“OB9233DTR（3V）” refers to three channel video remote node
