龙8-long8(国际)唯一官方网站

l Monitoring terminal can be used standard 19 inch 1U chassis, remote using desktop or rack;

l Remote optical transceiver can be hung on the wall;

l Single-mode single-fiber transmission of video, audio / speech channel, data, switch and other signals;

l Digital uncompressed optical fiber transmission;

l Compatible with PAL, NTSC, SECAM and other standard video transmission;

l Half-duplex / full-duplex data communication;

l BIDI audio or speech;

l Audio / Telephone, Ethernet is optional card (optional interface), user-friendly selection;

l Industrial design, high reliability;

l Full surface mount technology;

l MTBF ≥ 80000 hours

Optical characteristics
Optical interface		Conventional FC (optional SC, ST)
Wavelength		single mode 1310nm/1550nm ；multimode 850nm/1310nm
Fiber		multimode, single mode
Transmission power		-9dBm/-5dBm
Transmission length		20km (basic type) (40km, 60km, 80km optional)
Receiving sensitivity		better than -36dBm
Video characteristics(V)
Number of Video interface		32 video
Video interface form		BNC
Video input/output impedance		75Ω（unbalanced)
Video input/output voltage		1Vp-p
Differential gain		<1% (typical)
Differential phase		<1 ° (typical)
Video signal to noise ratio (weighted)		S/N ≥ 70dB (maximum optical link loss)
Video bandwidth		2Hz～8MHz
窗体顶端 Sampling frequency		16MHz
Quantization level		8/10bit
Signal System		PAL/NTSC/SECAM
Color brightness delay difference		10ns
Color brightness gain difference		+/- 10%
Data characteristics(D):(Optional)
Data Interface Terminals		Standard Industrial Terminals
Data format		RS-232 / RS-485 optional
Work mode		half duplex / full duplex optional
Transmission rate		0～115.2Kbps
Bit Error Rate		≤10-9
Audio characteristics(A):(Optional)
input/output voltage		1Vp-p
input/Output impedance		600Ω, unbalanced
Audio bandwidth		10Hz ~ 20KHz
Sampling frequency		8KHz
Switch interface parameters(K):(Optional)
Physical interface		Standard Industrial Terminals
Input signal		any active or passive alarm, switch signal input, support TTL, or passive switch, button
Output signal		any active or passive alarm, switch signal output, support for TTL, or relay contact output
Note: the switch can only access 5V signal or passive switch, the output is used to drive an external controller, and then control the high-voltage equipment
Telephone characteristics (p):(Optional)
Interface Type		Automatic (FXS), exchange (FXO)
Sampling frequency		8KHz
Coding		A law
Bit rate		64Kbit / s
Maximum loop resistance		2000Ω
Effective transmission bandwidth		300-3400HZ / 600Ω
Idle channel noise		<-67dB
Ring current voltage		25 ± 3Hz, 75 ± 15V
Net attenuation frequency		to meet the ITU-T recommendations
Free talk noise		no more than -65dBm0p
Road cross-talk		no more than -65dBm0
Amplitude characteristics		Meet ITU-T recommendations
Total distortion		Meet ITU-T recommendations
Power supply conditions
-48VDC			Power supply range -36V ~ -72V, ripple ≤ 240mVp-p
220VAC			Power supply range 110V ~ 265V, 50Hz
Power consumption			The whole is less than 3W
Environmental requirements
working environment:	Ambient temperature			-10 ℃ ~ 55 ℃
	Relative humidity			≤ 90% (non-condensing)
	Atmospheric pressure			86 ~ 106KPa
Storage environment:	Ambient temperature			-20 ~ 80 ℃
	Relative humidity			≤95%
Size				230x160x43mm

Size	230x160x43mm

32-Channel Video+1-Channel reverse RS485 data.doc