| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add to Cart |
| GB/T 7611-2001 |
Characteristics of the electrical interface at hierarchical bit rate for digital network |
$1545.00 |
via email in 1~3 business day |
superseded,2016-12-1,2002-1-2 |
|
| GB/T 7611-2016 |
Characteristics of the electrical interface at hierarchicalbit rate for digital network |
$1330.00 |
via email in 1~5 business day |
valid,,2016-12-1 |
|
| GB/T 7617-1987 |
Power levels for data transmission over telephone lines |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1987-11-1 |
|
| GB/T 7618-1987 |
Electrical characteristics for unbalanced double-current interchange circuits for general use with integrated circuit equipment in the field of data communications |
$220.00 |
via email in 1~3 business day |
valid,,1987-11-1 |
|
| GB/T 7619-1987 |
Electrical characteristics for balanced double-current interchange circuits for general use with integrated circuit equipment in the field of data communications |
$150.00 |
via email in 1~3 business day |
valid,,1987-11-1 |
|
| GB/T 7620-1987 |
300 bits per second duplex modem standardized for use in the general switched telephone network |
$124.00 |
via email in 1~3 business day |
valid,,1987-11-1 |
|
| GB/T 7627-1987 |
Characteristics of distortion and error-rate measuring app-aratus for data transmission |
$180.00 |
via email in business day |
abolished2005-10-14 ,,1987-11-1 |
|
| GB/T 7720-1987 |
Technical requirements and test methods for semi-automatic toll terminal equipment |
$904.00 |
via email in 1~5 business day |
valid,,1988-1-1 |
|
| GB/T 9032-1988 |
Performance requirements of pushbutton telephone with pulse |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1988-10-1 |
|
| GB/T 9033-1988 |
Performance requirements of pushbutton dialer with pulse |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1988-10-1 |
|
| GB/T 9034-1988 |
Performance requirements of pushbutton telephone with DTMF |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1988-10-1 |
|
| GB/T 9035-1988 |
Performance requirements of pushbutton dialer with DTMF |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1988-10-1 |
|
| GB/T 9037.1-1988 |
The specifications for photographic facsimile apparatus |
$260.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1988-10-1 |
|
| GB/T 9037.2-1988 |
Measuring methods for photographic facsimile apparatus |
$260.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1988-10-1 |
|
| GB/T 9050-1988 |
General Specifications for 8GHz band microwave communication Equipment used in analogue radio-relay systems |
$240.00 |
via email in 1~3 business day |
valid,,1989-1-1 |
|
| GB/T 9405-1995 |
Performance and test methods of the third order digital multiplex equipment operating at 34368 kbit/s and using positive justification |
$210.00 |
via email in 1~3 business day |
valid,,1995-12-1 |
|
| GB/T 9408-1988 |
Specifications for colour TV modulation equipment(1TV+1 sound program)-Used in long-haul terestrial analog radio-relay systems |
$150.00 |
via email in 1~3 business day |
valid,,1989-1-1 |
|
| GB/T 9540-1988 |
Wideband modem for synchronous data transmission at a data signalling rate higher than 72 kbit/s using 60～108kHz group band circuits |
$380.00 |
via email in 1~3 business day |
abolished2005-10-14,,1989-2-1 |
|
| GB/T 9541-1988 |
2400 bits per second duplex modem using the echo cancellation technique standardized for use on the general switched telephone network and on point-to-point 2 wire leased telephone-type |
$450.00 |
via email in 1~3 business day |
valid,,1989-2-1 |
|
| GB/Z 41292-2022 |
General technology requirements on WAN based remote measurement and control applications for intelligent agriculture |
$255.00 |
via email in 1~3 business day |
valid,,2022-10-1 |
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