171 </tbody> |
171 </tbody> |
172 </table> |
172 </table> |
173 |
173 |
174 <h2><a name="screen" id="screen">LCD Screen</a></h2> |
174 <h2><a name="screen" id="screen">LCD Screen</a></h2> |
175 |
175 |
176 <p>TBD</p> |
176 <p align="center"> |
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177 <a href="images/S-screen.jpg"><img alt="Village DTN router" src="images/S-screen-small.jpg"/></a><br/> |
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178 Figure 5 - the LCD screen. |
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179 </p> |
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180 |
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181 <p>The device has small LCD screen inside the front window that |
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182 provides some limited status information. Figure 6 (TBD) explains |
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183 the various fields on the screen. Example messages are described |
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184 below.</p> |
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185 |
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186 <table border="1" width="30%" align="center"> |
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187 <caption>Startup Screen</caption> |
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188 <tbody> |
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189 <tr> |
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190 <td> |
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191 Welcome to N4C |
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192 </td> |
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193 </tr> |
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194 <tr> |
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195 <td> |
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196 Loading... |
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197 </td> |
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198 </tr> |
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199 </tbody> |
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200 </table> |
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201 <p>The startup screen is displayed about one minute after reboot |
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202 (after the Linux operating system has booted). Between power |
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203 on and this being displayed, one can see that the screen has |
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204 power, but nothing is displayed.</p> |
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205 |
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206 <p>Note that the screeen is only updated once every minute.</p> |
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207 |
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208 <table border="1" width="30%" align="center"> |
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209 <caption>UP State</caption> |
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210 <tbody> |
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211 <tr> |
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212 <td> |
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213 V:1164 |
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214 </td><td>A:-376 |
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215 </td><td align="right"> 14:03 |
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216 </td> |
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217 </tr> |
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218 <tr> |
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219 <td> |
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220 UP |
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221 </td><td> |
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222 </td><td align="right"> |
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223 </td> |
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224 </tr> |
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225 </tbody> |
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226 </table> |
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227 <p>In the UP state, the device is fully operational and displays the |
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228 state (lower left), the Voltage level (in millivolts) on the top left, |
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229 the current being drawn in milli-Amps (as a negative number) or the |
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230 current being received from the solar panels (positive numbers) in |
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231 the top-middle, and the current local time on the top right.</p> |
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232 |
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233 <table border="1" width="30%" align="center"> |
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234 <caption>OVERRIDE State</caption> |
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235 <tbody> |
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236 <tr> |
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237 <td> |
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238 V:1164 |
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239 </td><td>A:-376 |
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240 </td><td align="right"> 14:03 |
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241 </td> |
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242 </tr> |
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243 <tr> |
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244 <td> |
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245 OVERRIDE |
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246 </td><td> |
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247 </td><td align="right"> |
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248 Time:26min |
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249 </td> |
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250 </tr> |
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251 </tbody> |
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252 </table> |
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253 <p>The OVERRIDE state display is as for the UP state, but with the |
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254 number of minutes remaining for the OVERRIDE state displayed |
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255 in the bottom right.</p> |
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256 |
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257 <table border="1" width="30%" align="center"> |
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258 <caption>STANDBY-SHORT State</caption> |
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259 <tbody> |
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260 <tr> |
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261 <td> |
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262 V:1164 |
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263 </td><td>A:-376 |
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264 </td><td align="right"> 14:03 |
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265 </td> |
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266 </tr> |
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267 <tr> |
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268 <td> |
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269 STBYSHORT |
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270 </td><td> |
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271 </td><td align="right"> |
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272 Wake@14:33 |
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273 </td> |
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274 </tr> |
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275 </tbody> |
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276 </table> |
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277 <p>The STANDBY-SHORT state display is as for the UP state, but with the |
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278 time scheduled for the next reboot displayed |
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279 in the bottom right.</p> |
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280 |
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281 <table border="1" width="30%" align="center"> |
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282 <caption>STANDBY-LONG State</caption> |
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283 <tbody> |
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284 <tr> |
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285 <td> |
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286 V:1164 |
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287 </td><td>A:-376 |
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288 </td><td align="right"> 14:03 |
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289 </td> |
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290 </tr> |
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291 <tr> |
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292 <td> |
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293 STBYLONG |
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294 </td><td> |
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295 </td><td align="right"> |
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296 Wake@17:33 |
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297 </td> |
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298 </tr> |
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299 </tbody> |
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300 </table> |
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301 <p>The STANDBY-LONG state display is as for the UP state, but with the |
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302 time scheduled for the next reboot displayed |
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303 in the bottom right.</p> |
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304 |
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305 <table border="1" width="30%" align="center"> |
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306 <caption>SLEEP State</caption> |
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307 <tbody> |
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308 <tr> |
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309 <td> |
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310 V:1164 |
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311 </td><td>A:-376 |
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312 </td><td align="right"> 14:03 |
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313 </td> |
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314 </tr> |
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315 <tr> |
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316 <td> |
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317 SLEEP |
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318 </td><td> |
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319 </td><td align="right"> |
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320 Wake@06:00 |
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321 </td> |
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322 </tr> |
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323 </tbody> |
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324 </table> |
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325 <p>The (overnight) SLEEP state display is as for the UP state, but with the |
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326 time scheduled for the next reboot displayed |
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327 in the bottom right.</p> |
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328 |
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329 |
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330 <table border="1" width="30%" align="center"> |
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331 <caption>Power Management Error<caption> |
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332 <tbody> |
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333 <tr> |
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334 <td> |
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335 Voltage Spike |
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336 </td> |
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337 </tr> |
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338 <tr> |
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339 <td> |
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340 Power App Restart |
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341 </td> |
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342 </tr> |
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343 </tbody> |
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344 </table> |
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345 <p>This screen is displayed in the case of a power management |
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346 error. The error message may vary. Users should leave the |
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347 device alone for at least 30 minutes if this is displayed. |
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348 After that, if the device is not in one of the other known |
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349 states, they should turn the device on and off and then |
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350 leave it on, and report the problem (if possible).</p> |
177 |
351 |
178 </body> |
352 </body> |
179 </html> |
353 </html> |