CCOM Communication

Single board SDH Optical Transmission system
OTS-155A

OTS-155A is a STM-1 optical transmission system, whose technical performances are fully complied with ITU-T recommendations. This system is benefit of high integration, flexible construction and strong network adaptability. OTS-155A provides 2 155.52Mb/s aggregate line interfaces ofA and B, possessing the network elements timing function of ITU-T G.813 recommendation, and VC-3/VC-12 full-crossing connection and channel protection function.

Features
> World-leading design adopts independent ASIC, with 1U structure, compactness,
   high reliability, low power consumption;
> Two STM-1 optical interface, with capability of 63 x 63 VC12 non-blocking
   cross-connect and 1+1 channel protection
> supports tributaries Add/Drop of 42/63 x E1 at most,
> Supports ITU-T G.813 standard NETF, switching automatically between multi
   time sources;
> Provides Engineer Order Wire (EOW) interface (two-line model), with group
   call and dial functions;
> Provides F (Ethernet) and f (RS232) NMS interface, realizes ITU-T suggested
   five functions – network resources, equipment configuration, alarm,
   performance and security management functions;
> Supports system software remote upgrading ;
> Alarm and perform information can be stored during the course of power off;
> By changing the optical transceiver, supports ultra-long distance (≤80km),
   long distance (≤50km) optical transmission.

Benefit
> As an ADM, it can be inserted in STM-1 ring which provide 63/42×E1tributaries;
> As a terminal, it can multiplex 63/42×E1 to a line port.

Network Management
Network element management of OTS-155A system is based on unified network management platform CCVIEW-SDH. CCVIEW-SDH is designed in accordance with related recommendations of ITU-T, so as to realize network resources, equipment configuration, alarm, performance and security management; it can support unified management of multiple optical-route non-interconnected sub-net, and support remote network monitoring by way of Internet.

Typical Application
OTS-155A can be used for building point-to-point, chain, star of ring network, with SNCP features, serving departments of Telecom, Traffic or Energy industry, etc.


Technical Specification

Data Summary

Dimension

481mm(L)×355mm(W)×44mm(H)

Weight

4.0Kg

Supply voltage

-48VDC±10%

Power consumption

35W±10%(The spare power unit is optional)

Operation temperature

0℃-45℃

Humidity

≤90% (free from condensing)

Atmospheric pressure

70-106Kpa

Storage temperature

-20℃-70℃

Environment

Free from corrosive gas and soluble gas, or dust nuisance, without strong electromagnetic field in the vicinity.

Interface characters STM-1 line interface

Bit Rate

155.520Mb/s±4.6ppm

Standard

ITU-T G.957/G.958

Media type

ITU-T G.652/G.653, single mode

Work wavelength

1310nm (1550nm is optional, declare when ordering)

Relay-free transmission distance

50Km (70~100Km is optional, declare when ordering)

Sensitivity

≥-36dB

Adaptation

FC (SC is optional, declare when ordering)

Interface

S-1.1

E1 Tributary interfaces

Bit Rate

2.048Mb/s±50ppm

Code pattern

HDB3

Standard

ITU-T G.703

Connector

2mm high density connector

Impedance

75Ω Un-balanced (120 Ωbalanced is optional)

Jitter

Comply with ITU-T G. 823

SETS interfaces

Standard

Comply with ITU-T G.813/783

Input

T1, T2, T3

Output

T4