Evaluation Board J1 Connector Pin Functions
PIN # | PIN NAME | DIRECTION | DESCRIPTION | Notes |
30 | RS232_TX | OUT | RS232 Signal | 3V Max |
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29 | RS232_RX | IN | RS232 Signal | 3V Max |
28 | RS232_DTR | IN | RS232 Signal | 3V Max |
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27 | RS232_DCD | OUT | RS232 Signal | 3V Max |
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26 | RS232_GND | IN | Signal Ground |
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25 | RS232_RTS | IN | RS232 Signal | 3V Max |
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24 | RS232_CTS | OUT | RS232 Signal | 3V Max |
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23 | RS232_DSR | OUT | RS232 Signal | 3V Max |
22 | RS232_RI | OUT | RS232 Signal | 3V Max |
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21 | EXT_MIC | IN | Audio input to iO1500R |
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20 | AUDIO_COMMON | IN | Analog Ground |
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19 | AUDIO_OUT | OUT | iO1500R Audio Out |
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18 | OPT_SELECT_1 | I/O (22K | iO1500R configuration | Control Signal |
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17 | OPT_SELECT_2 | I/O (22K | iO1500R configuration | Control Signal |
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16 | MUX_CNTL | IN (69K | Logic “0” (Mfgr.use) | Control Signal |
15 | OPTION_3V | OUT | Regulated 3.0V Output |
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14 | OEM | IN (15K | Power On/Off | External On/Off |
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| 3.6V±5% Max |
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13 | MOD | IN (22K | Programming signal | 3V Max |
12 | BAT_VCC | IN | 3.6V iO1500R Power |
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11 | BAT_VCC | IN | 3.6V iO1500R Power |
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10 | BAT_VCC | IN | 3.6V iO1500R Power |
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9 | BAT_VCC | IN | 3.6V iO1500R Power |
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8 | BAT_VCC | IN | 3.6V iO1500R Power |
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7 | RED_LED | OUT | 3V±2.5% | |
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6 | GREEN_LED | OUT | 3V±2.5% | |
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5 | BAT_GND | IN | Ground |
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4 | BAT_GND | IN | Ground |
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3 | BAT_GND | IN | Ground |
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2 | BAT_GND | IN | Ground |
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1 | BAT_GND | IN | Ground |
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Page 7 of 8
