Hardware Interface Description - KORE Telematics
Hardware Interface Description - KORE Telematics
Hardware Interface Description - KORE Telematics
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XT55/56 <strong>Hardware</strong> <strong>Interface</strong> <strong>Description</strong><br />
Confidential / Released<br />
s<br />
5.3 Hirose antenna connector<br />
XT55/56 uses two ultra-miniature SMT antenna connectors (GSM<br />
and GPS antenna) supplied from Hirose Ltd. The product name is<br />
U.FL-R-SMT.<br />
The positions of both antenna connectors on the XT55/56 board<br />
can be seen in Figure 49.<br />
Figure 36: Mechanical dimensions of U.FL-R-SMT connector<br />
Table 21: Product specifications of U.FL-R-SMT connector<br />
Item Specification Conditions<br />
Ratings<br />
Nominal impedance<br />
Rated frequency<br />
Mechanical characteristics<br />
Female contact holding<br />
force<br />
Repetitive operation<br />
Vibration<br />
Shock<br />
Environmental characteristics<br />
Humidity resistance<br />
Temperature cycle<br />
50 Ω<br />
DC to 6 GHz<br />
Operating temp: -40°C to +90°C<br />
Operating humidity: max. 90%<br />
0.15 N min Measured with a ∅ 0.475 pin<br />
gauge<br />
Contact resistance:<br />
Centre 25 mΩ<br />
Outside 15mΩ<br />
No momentary disconnections of<br />
1 µs;<br />
No damage, cracks and looseness<br />
of parts<br />
No momentary disconnections of<br />
1 µs.<br />
No damage, cracks and looseness<br />
of parts.<br />
No damage, cracks and looseness<br />
of parts.<br />
Insulation resistance:<br />
100 MΩ min. at high humidity<br />
500 MΩ min when dry<br />
No damage, cracks and looseness<br />
of parts.<br />
Contact resistance:<br />
Centre 25 mΩ<br />
Outside 15mΩ<br />
30 cycles of insertion and<br />
disengagement<br />
Frequency of 10 to 100 Hz,<br />
single amplitude of 1.5 mm,<br />
acceleration of 59 m/s 2 , for 5<br />
cycles in the direction of each of<br />
the 3 axes<br />
Acceleration of 735 m/s 2 , 11 ms<br />
duration for 6 cycles in the<br />
direction of each of the 3 axes<br />
Exposure to 40°C, humidity of<br />
95% for a total of 96 hours<br />
Temperature: +40°C → 5 to 35°C<br />
→ +90°C → 5 to 35°C<br />
Time: 30 min. → within 5 min. →<br />
30 min. → within 5 min<br />
Salt spray test No excessive corrosion 48 hours continuous exposure to<br />
5% salt water<br />
XT55/56_hd_v02.06a Page 83 of 125 17.12.2004