Standard: Computer Software Copyright Registration Certificate Number: 122368 Issue Date: 2008-09-01 Expiry Date: 2011-09-01 Scope/Range: 2VLAN Optical Transceiver Software Issued By: National Copyright Administration of the P.R.C.

Standard: Computer Software Copyright Registration Certificate Number: 122369 Issue Date: 2008-09-01 Expiry Date: 2011-09-01 Scope/Range: 4VLAN Optical Transceiver Software Issued By: National Copyright Administration of the P.R.C.

Standard: Computer Software Copyright Registration Certificate Number: 122367 Issue Date: 2008-09-01 Expiry Date: 2011-09-01 Scope/Range: IDM-120P Mult-service Cross-Connect Multiplexer Issued By: National Copyright Administration of the P.R.C.

Standard: IDM-300ME Multi-service Multiplexer Number: 122366 Issue Date: 2008-09-01 Expiry Date: 2011-09-01 Scope/Range: IDM-300ME Multi-service Multiplexer Issued By: National Copyright Administration of the P.R.C.

Standard: Computer Software Copyright Registration Certificate Number: 118223 Issue Date: 2008-09-01 Expiry Date: 2011-09-01 Scope/Range: SDH NMS Software Issued By: National Copyright Administration of the P.R.C.

Standard: Computer Software Copyright Registration Certificate Number: 118224 Issue Date: 2008-09-01 Expiry Date: 2011-09-01 Scope/Range: Net Guard Multi-service Multiplexer NMS Software Issued By: National Copyright Administration of the P.R.C.

Standard: The Overseas Students Pioneer Park Succeeded Enterprise Number: 116 Issue Date: 2006-11-01 Expiry Date: 2013-06-07 Scope/Range: Beijing Raytrans Digital Technology Co.,Ltd Issued By: Beijing Overseas Pioneer Park

Standard: Certificate for Management System Number: 03007Q10088R1S Issue Date: 2007-10-08 Expiry Date: 2010-11-07 Scope/Range: Integrated Service Multiplexer,PDH Optical Terminal,SDH Optical Terminal,Converter Issued By: TL Certificate Center

Standard: The Network Access License Number: 28-7125-801853 Issue Date: 2008-08-11 Expiry Date: 2011-08-11 Scope/Range: Multiplexer Issued By: Ministry of Industry and Information Technology of the People\'s Republic of China

Standard: Certificate of High and New Technology Corporation Number: GR200911000277 Issue Date: 2009-06-12 Expiry Date: 2012-06-12 Scope/Range: Beijing Raytrans Digital Technology Co.,Ltd Issued By: Beijing Municipal Science & Technology Commission; Beijing Municipal Office,State Administration of Taxation,P.R.China

Standard: Certificate for High and New Technology Corporation at Zhongguancun Science Park Number: 20092010031801 Issue Date: 2009-05-04 Expiry Date: 2012-05-04 Scope/Range: Beijing Raytrans Digital Technology Co.,Ltd Issued By: Zhongguancun Science Park Administrative Commission