DUAL DUPLEX FILTER GSM-R 900MHZ
Dual Duplex GSM-R filters are two port units with the ability to simultaneously pass both uplink and downlink GSM-R signals
FEATURES
- Designed for GSM-R cab radio use
- Low insertion loss (0.5dB typical)
- Provides 40 dB of rejection to adjacent EGSM900 uplink and downlink
- Comply to EN 45545-2 Fire Protection on Railway Vehicles
- CE/RoHS/ETSI compliant
- IP54 outdoor applications
TECHNICAL SPECIFICATIONS |
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| BAND NAME | DOWNLINK (TX) | UPLINK (RX) | |||||||||||||
| RF PERFORMANCE | |||||||||||||||
| Passband | 918 – 925 MHz | 873 – 880 MHz | |||||||||||||
| Bandwidth | 7MHz | ||||||||||||||
| Insertion loss | 2.0 dB maximum at band-edge, 0.5 dB typical at mid-band | ||||||||||||||
| Return loss | 20 dB minimum all ports 918 – 924.8 MHz- 15 dB minimum all ports at -40° C 924.8 – 925 MHz- 10 dB minimum all ports at -40° C |
20 dB minimum all ports 15 dB minimum all ports at -40° C |
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| Maximum input power | 20 W | 20 W | |||||||||||||
| REJECTION CHARACTERISTIC (PORT A TO PORT B) | |||||||||||||||
| DC – 872 MHz | 40 dB minimum | ||||||||||||||
| 882 – 917 MHz | 40 dB minimum | ||||||||||||||
| 925.5 – 926.2 MHz | 30 dB minimum | ||||||||||||||
| 926.2 – 930 MHz | 40 dB minimum | ||||||||||||||
| 930 – 2700 MHz | 50 dB minimum | ||||||||||||||
| ELECTRICAL | |||||||||||||||
| Impedance | 50 Ω | ||||||||||||||
| Intermodulation products | < -150 dBc (in uplink band, 2×20 W carriers) | ||||||||||||||
| ENVIRONMENTAL | |||||||||||||||
| For further details of environmental compliance, please contact Kaelus. | |||||||||||||||
| Temperature range | Storage temperature: -40º C to +55º C Operating temperature: -25º C to +70º C, EN 50155 OT3 Increased operating temperature at switch on: ST0 |
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| Ingress protection | IP54 | ||||||||||||||
| Altitude | 1,400 m, EN 50125-1, Class A1 | ||||||||||||||
| MTBF | >1,000,000 hours | ||||||||||||||
| Compliance | EN 50155 shock and vibration: Category 1, Class B – any orientation EN 45545-2 Fire Protection on Railway Vehicles ETSI 300 019-1-1 Class 1.2 Storage ETSI 300 019-1-2 Class 2.3 Transport RoHS |
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| Operational humidity | 95% | ||||||||||||||
| MECHANICAL | |||||||||||||||
| Dimensions H x D x W | 295 x 350 x 150 mm (excluding brackets) | ||||||||||||||
| Weight | 15.0 kg | ||||||||||||||
| Connectors | N type (F) X 2 | ||||||||||||||
| Mounting | Customer specific, includes grounding post | ||||||||||||||
ORDERING INFORMATION |
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| PART NUMBER | DESCRIPTION | ||||||||||||||
| DDF9007F1V1-1 | Dual Duplexed Filter, GSM-R | ||||||||||||||
ELECTRICAL BLOCK DIAGRAM |
MECHANICAL BLOCK DIAGRAM |
