TB/T 3369-2018 in English
VALIDCalibration method for concrete mixer used in laboratory repeater of Global System for Mobile communications-Railway (GSM-R)
- Issued on:2018-01-11
- Implemented on:2018-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$175.00
| Standard No: | TB/T 3369-2018 |
| Document status: | VALID |
| Title in English: | Calibration method for concrete mixer used in laboratory repeater of Global System for Mobile communications-Railway (GSM-R) |
| Title in Chinese: | 铁路数字移动通信系统（GSM-R）光纤直放站网络管理系统试验方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2018-01-11 |
| Implemented on: | 2018-07-01 |
| Professional Classification: | TB-Railway Transport |
| Related Topics: | gsm-r
management test Direct Network Repeater Direct light system TB/T 3474.2-2018 tb/t3539-2018 |
Introduction
Analysis of the core content of the standard
| Test category | Key indicators | Test method |
|---|---|---|
| System function | Configuration/fault/performance management | Clause 4.1-4.4 |
| Communication interface | Ethernet/NTP protocol | Clause 6.1-6.3 |
| Performance indicator | Alarm delay ≤0.1s | Clause 5.1 |
Technology Evolution Background
This standard is based on the key role of fiber repeaters in the GSM-R system. Compared with the TB/T 3364-2015 analog repeater standard, it adds:
- Network management function verification requirements
- Northbound interface data reporting specifications
- Interconnection with the YD/T 1363.2 protocol of the power supply monitoring system
Implementation Key Points and Suggestions
Case: During the acceptance of a high-speed railway project, the communication delay between the network management center and the repeater was captured by the network analyzer and exceeded the standard (the standard requirement is ≤1s), which was eventually located as a protocol stack configuration error.
Suggested measures:
- Establish a standard protocol test environment (temperature 10-30℃/humidity ≤95%)
- Strictly perform type inspection in accordance with Clause 7.3
- Focus on verifying the 7 communication processes in Clause 6.1.3
In-depth analysis of interface protocol
The communication protocol stack specified in Chapter 6 of the standard includes:
| Layer | Technical requirements |
| Bearer layer | TCP/IP protocol, port number needs to be solidified |
| Application layer | Must include command unit + data object structure |
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