33.040 电信系统 标准查询与下载
共找到 355 条与 电信系统 相关的标准，共 24 页
本标准主要对程控交换机用的直流基础电源系统，包括换流配电设备、电压允许变动范围、全程放电回路电压降、杂音电压、导线配线原则等主要技术问题提出要求。 本标准适用于公用通信网用的程控交换机电源，专用通信网用的程控交换机电源亦应参照使用。
Technical requirement of fundamental power supply units for SPC exchange
- ICS
- 33.040
- CCS
- M41
- 发布
- 1993-03-26
- 实施
- 1994-09-01
Technical conditions of telephone network number inquiry system
- ICS
- 33.040
- CCS
- M40
- 发布
- 1993-01-18
- 实施
- 1993-07-01
General technical requirements for carrier dispatching communication device of cable-type electric locomotive in coal mine
- ICS
- 33.040
- CCS
- D98
- 发布
- 1992-03-31
- 实施
- 1992-08-01
本标准规定了电报电源设备为适应电报通信设备的发展、更新和配套所必需具备的技术条件。 本标准适用于向电报通信设备供电的电源设备，不适用于电报设备的机内电源单元。
Technical conditions for telegraph power supply unit
- ICS
- 33.040
- CCS
- M41
- 发布
- 1992-01-19
- 实施
- 1992-12-01
Semiconductor rectifier equipments For telecommunications
- ICS
- 33.040
- CCS
- M41
- 发布
- 1992
- 实施
this supplement forms apart of MIL-D-3954Cn 19 November 1973.
DUMMY LOADS, ELECTRICAL WAVEGUIDE, GENERAL SPECIFICATION FOR
- ICS
- 33.040
- CCS
- M18
- 发布
- 1989-09-27
- 实施
MIL-D-81976(AS), dated 17 June 1974, has been reviewed and determined to be current.
DUMMY LOAD, ELECTRICAL DA-662/UPQ-5
- ICS
- 33.040
- CCS
- M18
- 发布
- 1988-03-21
- 实施
Main technical requirement for 620KHz level oscillators
- ICS
- 33.040
- CCS
- M40
- 发布
- 1983-02-17
- 实施
- 1983-07-01
Main technical requirement for 620KHz attenuator
- ICS
- 33.040
- CCS
- M40
- 发布
- 1983-02-17
- 实施
- 1983-07-01
Main technical requirement for 620KHz selective level meter
- ICS
- 33.040
- CCS
- M40
- 发布
- 1983-02-17
- 实施
- 1983-07-01
shall be for intermediate (shop) use and shall provide resistive loading for the operation of Static Fre.quency Converter CV-Z933/UPQ- 5.
DUMMY LOAD, ELECTRICAL DA-662/UPQ-5
- ICS
- 33.040
- CCS
- M18
- 发布
- 1974-06-17
- 实施
This s p e c i f i c a t i o n covers t h e g e n e r a l requirements f o r waveguide electrical dummy loads f o r use i n terminating r a d i o frequency transmission l i n e s (see 6.1).
DUMMY LOADS, ELECTRICAL WAVEGUIDE, GENERAL SPECIFICATION FOR
- ICS
- 33.040
- CCS
- M18
- 发布
- 1973
- 实施
Technical regulations of Ministry of Posts and Telecommunications on information system (provisional regulations)
- ICS
- 33.040
- CCS
- M30
- 发布
- 实施
Specification for installation design of posts and communications power supply equipment
- ICS
- 33.040
- CCS
- M41
- 发布
- 实施
Technical specifications for Installation engineering construction and acceptance of communication power supply equipment
- ICS
- 33.040
- CCS
- M41
- 发布
- 实施
