| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add to Cart |
| GB/T 6363-1986 |
Method for the subjective assessment of the quality of document facsimile |
$110.00 |
via email in 1~3 business day |
valid,,1987-5-1 |
|
| GB/T 6879-1995 |
Performance and test methods of the 30 channels pulse code modulation multiplex equipment at 2048 kbit/s |
$720.00 |
via email in 1~3 business day |
valid,,1996-8-1 |
|
| GB/T 7394-1987 |
of 600-9600bit/s baseband MODEM |
$224.00 |
via email in 1~3 business day |
valid,,1987-11-1 |
|
| GB/T 7395-1987 |
methods of 600-9600bit/s baseband MODEM |
$75.00 |
via email in 1~3 business day |
valid,,1987-1-1 |
|
| GB/T 7436-1987 |
of TDM equipment operating on analog telephone-type circuit for telegraph and lower-speed data |
$240.00 |
via email in 1~3 business day |
valid,,1987-1-1 |
|
| GB/T 7438-1987 |
Numbering for telex and low speed data in national communication network |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1987-1-1 |
|
| GB/T 7616-1987 |
Equivalence between binary notation symbols and the significant conditions of a two-condition code |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1987-1-1 |
|
| 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 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 9412-1988 |
Modems for data transmission at 48 kilobits per second using 60~108 kHz group band circuits |
$100.00 |
via email in 1~3 business day |
valid,,1988-12-1 |
|
| GB/T 9413-1988 |
Methods of measurement of midems for wide band using 60~108 kHz group band circuits |
$160.00 |
via email in 1~3 business day |
valid,,1988-12-1 |
|
| 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 41294-2022 |
Internet of thing (IoT) application protocol—Technical requirements of the constrained application protocol (CoAP) |
$675.00 |
via email in 1~5 business day |
valid,,2022-10-1 |
|
| GB/Z 41298-2022 |
Internet of thing (IoT) application protocol—Test methods of the constrained application protocol (CoAP) |
$375.00 |
via email in 1~5 business day |
valid,,2022-10-1 |
|
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