| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| YD/T 1259-2003 |
Technical specification for optical safe procedure for Wavelength Division Multiplexing (WDM)system |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 7254-1995 |
Performance and test methods of the second order digital multiplex equipment operating at 8448 kbit/s and using positive justification |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD 536-1992 |
|
 (USD) |
via email in
1-3 business day
|
|
|
| YD/T 1000-1999 |
Performance for data networks providing international frame felay SVC service |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 13998-1992 |
Measuring methods of the magnetic induced longitudinal EMF, magnetic induced voltage with respect to earth, electric induced current and psophometric voltage on telecommunication lines |
|
via email in
1-3 business day
|
|
please email coc@codeofchina.com for quotation
|
| GB/T 5443-1985 |
The test methods for the technical specifications of ringing and tone for automatic telephone switching network |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
