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Valiant's
"Optiloopä "
- Digital Loop Carrier system, (Fiber-to-theCurb) is a state-of-the-art Fiber In the Local
Loop equipment designed in conformity to the ITU (CCITT) specifications that has all the
features and functions that are essential in a "Network Access Product". Valiant's Optiloop provides Voice, Data and ISDN services from the
same product.
Optiloop also provides exceptionally economical solution for
providing a combination of fiber and / or copper transmissions.
| Electrical Interface @ 34MBit/Sec. |
| Specification. |
34MBit/Sec.
Port |
| Bit rate |
34368 Kbps. |
| Tolerance |
± 20ppm. |
| Interfaces |
1, G.703 |
| Line Code |
HDB3 |
| Signal Level |
1.0 V p |
| Impedance |
75 Ohms Un-Balanced |
| Permissible Attenuation |
12 dB at 17184 KHz. |
| 34 MBits/Sec. Optical Interface |
| Specification |
34Mbps, Optical Interface. |
| Line Code |
NRZ Scrambled |
| Fiber Type |
Single Mode |
| Wavelength (in nm) |
1280-1330nm |
Transmitter:
Average Power Output Minimum (in dBm) |
-3dBm*, -5dBm*,
-8dBm*, -12dBm*,
(*optional) |
| RMS Spectral Width |
< 4nm |
| Random Jitter |
Typical 100 ps.
Max. 760 ps. |
| Data-dependent Jitter |
Typical 200 ps.
Max. 600 ps. |
Receiver
Receiver Sensitivity (in dBm) |
Typical -42.0 dBm
Min. -38.0 dBm |
| Maximum Input Power |
@ 34MBit/Sec. -3.0 dBm |
| Equipment Margin (in dB) |
3 dB. |
| 1+1 Protection |
Optional |
| 2MBit/Sec Interface: |
| Specifications |
2MBit/Sec
Interface: |
| Bit Rate: |
2048KBit/Sec. |
| PCM Sampling Rate: |
8000 Samples/Sec. |
| Encoding Law: |
A Law. |
| Code: |
HDB3 |
| Tolerance: |
± 50ppm. |
| Signal Level: |
2.37V / 3.0Vp |
| Nominal Impedance: |
120 Ohms balanced (75 Ohms
un-balanced, optional) |
| Pulse Mask: |
As per ITU (CCITT) G.703 |
| Frame Structure: |
As per ITU (CCITT) G.704 |
| Permissible Attenuation: |
6dB at 1024 KHz. |
| Signaling: |
Channel Associated Signaling. |
| Fully compliant to ITU
(CCITT) G.703 interface specifications. |
| Voice
Frequency Ports: |
| Specifications |
Voice Frequency Ports: |
| Line Impedance: |
600 Ohms (900 Ohms optional). |
| Voice Channel Frequency: |
300Hz - 3400Hz. |
| Insertion Loss: |
-2.0dB Nominal (User adjustable in
steps of 0.5dB through Network Management Software). |
| Idle Channel Noise: |
< -65dB |
| Return Loss: |
300Hz. - 600Hz. - > 12dB.
600Hz. - 3400Hz. - >
15dB. |
| Longitudinal Balance: |
> 46dB between 300Hz to 3400Hz. |
| Ring Frequency: |
25Hz (20Hz optional). |
| Ring Voltage: |
40Volts RMS into a 3 R.E.N. Load. |
| Subscriber Loop Current: |
23mA into a subscriber loop of 1000
Ohms. |
| Overload Level: |
+3.14dBm ± 0.5dBm. |
| Battery Reversal: |
All channels. |
| Periodic Metering: |
16KHz. (Optional) |
| Transmission Performance: Fully
compliant to ITU (CCITT) G.713 specifications. |
| V.35 High Speed Data Interface: |
| Bit rate |
64KBits/Sec. |
| Mode: |
Synchronous |
| Conformity: To ITU (CCITT) Rec. V.35 |
| V.24 Data Interface: |
| Bit rate |
2.4 / 4.8 / 7.2 / 9.6 / 19.2
KBits/Sec. |
| Mode: |
Synchronous / Asynchronous |
| Conformity: To ITU (CCITT) Rec. V.24 |
| Synchronization: |
| Synchronization Sources: |
Priority Software Selectable by the
user, Internal Clock, External Clock, Extracted from a Remote Source through the 34.368
MBits/Sec. received signal. |
| Power
Requirements: |
| Power Requirements: |
-48VDC nominal, -40VDC to -60VDC. |
| Environmental: |
| Temperature
Range: |
-10° Centigrade
to +65° Centigrade |
| Humidity: |
5% to 95% R.H. Non-Condensing. |
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Us | Products | Whats New | Press
| Contact Us | E-mail
E-mail: Contact Us
Web Site: http://www.valiantcom.com
Optiloop™ is the trademark of Valiant Communications
Limited
Technical Specifications are subject to change without notice.
© Copyright. Valiant Communications Limited 1997-2008. |
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