Level 2 specification
NR/L2/TEL/30143
Line Side Telephones Product Specification
Issue 1, 05 June 2010 · Lineside telephones & NTPs
Clause map — what each clause deals with
| 1 | Purpose | Product spec for selecting and buying lineside telephones |
| 2 | Scope | Minimum requirements for central-battery and GSM/GSM-R lineside telephones |
| 3 | Definitions | Definitions — AHB, CB, PETS |
| 4 | Technical Specification | Technical spec — BS compliance for CB telephones |
| 6 | Mechanical Construction | Mechanical construction and environmental category |
| 7 | Cabling | Cable entry |
| 8 | Press switches | Press switches and sounder |
| 9 | Functional Operation | Functional operation — lift/press to call |
| 10 | Indications | Visual and audible indications |
| 11 | Electrical requirements | Electrical — REN and so on |
| 12 | Labelling | Labelling of crossing telephones |
| 13.1 | Maintenance and Support | Maintainability in situ |
| 14 | Environmental | Operation in AC/DC electrified environments |
| 15 | Illumination | Illumination at level crossings |
| 16 | Power requirements | Power requirements for illuminated units |
| 17 | Speech Quality | Speech quality |
| 18 | Additional Requirements for GSM/GSM-R Fixed | Extra requirements for GSM/GSM-R fixed telephones — configuration, monitoring, UI, power |