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DART 200 CDPD Modem User’s Guide | 2 Installation and Setup |
Table
Condition | Result | Solution |
| Code |
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Power supply | Not | The DART operates on a voltage of 11 to |
problem | applicable | 16 VDC with a current rating of 2.5 amps. |
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| Voltage level fluctuations caused by using |
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| an unregulated power supply, or a supply |
|
| with too low a current rating will cause the |
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| modem to experience a power reset. This |
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| forces the modem to reset itself before it |
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| can complete the |
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| request. |
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| The most frequent problem is too low a |
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| current rating. The MDBS controls the |
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| output power of the DART. The DART |
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| may work well with a particular power |
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| supply in a location where low power |
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| output is required, and yet fail using the |
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| same power supply in a different location |
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| if the power output demands are higher. |
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| Use a power supply with an amperage |
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| rating of at least 2.5 amps to avoid this |
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| problem. |
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MDIS or | 251, or 252 in | Registration problems can be caused by the |
network | MDIS, or by the network beyond. If you | |
problem |
| are operating in an area where CDPD |
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| service is new or has recently had software |
|
| changes then this is a possibility. |
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| OR |
| 250 in | If your serving MDIS is different than your |
| home MDIS (usually occurs if the | |
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| in one carrier’s territory and the DART is |
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| registered on a different carrier’s MDIS) a |
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| network router or link problem could cause |
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| the registration attempt to time out. |
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| 1. View |
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| far through the registration process the |
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| modem had progressed. Home MDIS |
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| delay problems show up as 4 in this |
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| register. |
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| 2. Contact your local carrier for |
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| assistance |
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Sierra Wireless, Inc. |