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| Products > Optical Products > Optical Transmitter |
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| The Salient Features of Optical Transmitter |
| Product Summary |
Optical transmitter adopt an internal isolated Distributed Feedback (DFB) laser as optic source, transmitter picture and voice to fiber system by AM-VSB, switchover to electric signal by optical receiver, then distribute to general customers. This kind of the equipment is widely used in broadband integrated information networks, transmit TV, digital & voice signal. It is the key transmitting equipment for wide net. |
| Features |
1. Adopt imported High-quality DFB laser (Ortol, Lucent, Fujitsu, Mitsubishi).
2.
1U, 19" rack housing
3.
45~750/870 MHz forward bandwidth
4.
4~22mW optical output power
5.
Automatic / Manual gain control mode
6.
Front panel LCD display
7.
RS485/RS232 control interface.
8.
FUJITSU optic module, 860MHZ PHILIPS amplify module. |
| Diagram |
|
| Optical Parameters |
|
Items |
Unit
|
|
| Laser Type |
|
Cooled DFB LD with isolator |
| Optical Power |
mW
|
4 |
6 |
8 |
10 |
13 |
16 |
20 |
| Optical Link Path Loss |
dB
|
6 |
8
|
9 |
10 |
11 |
12 |
13 |
| Optical Wave Length |
nm
|
1310±20
|
| Optical Connector Type |
|
FC/APC SC/APC
|
| RF Parameters |
| Operating Frequency |
MHz
|
45 to 750 or 45 to 870
|
| RF Input Level |
dB mV
|
75 - 85
|
| Flatness In Band |
dB
|
+0.75
|
| Input Impedance |
W
|
75
|
| Input Reflection Loss |
dB
|
³- 16
|
| Gain control range |
dB |
10dB |
| Channel loading |
|
77 NTSC or 60 PAL channels+200 or 300 MHz digital channels |
| Link Performance |
| Output |
|
Typical Link budget
|
| Power |
|
6dB |
7dB |
8dB |
9dB |
10dB |
11dB |
12dB |
13dB |
14dB |
15dB |
| 4mW (6dBm) |
|
|
52.5 |
|
51.5 |
50.5 |
|
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| 6mW (8dBm) |
|
52 |
51 |
50 |
|
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|
|
| 8mW (9dBm) |
|
52.5 |
51.5 |
50 |
|
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|
| 10mW (10dBm) |
|
|
52.5 |
51.5 |
50 |
|
|
|
|
|
|
| 13mW (11dBm) |
|
|
|
|
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|
52.5 |
51.5 |
50 |
| 16mW (12dBm) |
|
|
|
v |
52.5 |
51.5 |
50 |
|
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| 20mW (13dBm) |
|
|
|
|
|
52.5 |
51.5 |
50 |
|
|
|
| C/CTB |
dB |
³- 65 |
| C/CSO |
dB
|
³- 60
|
| C/N |
dB
|
³ 51
|
Test conditions:
1.Room temperature: 25 C 5 C
2.77/60 CW carriers (NTSC/PAL frequency planning), 4/5MHz noise bandwidth |
| Electrical/Physical/Environmental Performance |
| Control interface |
|
RS485, RS232 |
| Power Voltage |
V
|
220(110~254)
|
| Power Consumption |
W
|
24
|
| Operating Temperature |
°C |
0°to 50°C |
| Storage Temperature |
°C |
-20° to + 70°C |
| Dimensions |
mm |
385D×483W×44H |
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