Radio Shack Modem I TRS-80 Owner'S Manual Download | Manualshive

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Summary of Contents for Modem I TRS-80

Page 1: ...Modem I atalog Number 26 1172 MICRO COMPUTER SYSTEM i i mm v CUSTOM MANUFACTURED IN U S A BY RADIO SHACK A DIVISION OF TANDY CORPORATION...

Page 2: ...RE SOLD LEASED LICENSED OR FURNISHED BY RADIO SHACK INCLUDING BUT NOT LIMITED TO ANY INTERRUPTION OF SERVICE LOSS OF BUSINESS OR ANTICIPATORY PROFITS OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OR...

Page 3: ...80 Model I Level II computers which do not have an rs 232 c interface Select norm for rs 232 c use cass for use with the cassette interface of Model I Level II Computers Cassette use requires optional...

Page 4: ...normally now AC Connection Connect the ac adapter to the ac jack on the Modem s rear panel and to an electrical wall outlet Note Use only the supplied UL listed adapter The use of any other adapter co...

Page 5: ...If your telephone hook up looks like this Connect like this Figure 1 Connection to Modular Phone Jacks...

Page 6: ...cts either ORiGinate or ANSwer mode Note With the Modem connected your phones are available for conversational use only when the mode switch is off So be sure to select mode off when you are not using...

Page 7: ...Top View Rear View Figure 4 Identification of Controls and Connectors...

Page 8: ...eive and transmit tones the Modem will respond to For communications to take place one modem must be in the originate mode and the other in the answer mode Normally when you dial a host computer your...

Page 9: ...Host Terminal ORiGinate Mode User places call Figure 5 Originate Answer Mode Difference...

Page 10: ...ne flip the mode switch to ORiGinate and hang up the phone 3 When the Carrier Detect cd light comes on you may start communicating When communications are finished be sure to sign off The sign off wil...

Page 11: ...or equal to 300 Troubleshooting Chart Symptom Problem Solution Carrier Detect light off AC Adapter is not plugged in plug in Telephone connections check connections and refer to the Installation sect...

Page 12: ...smit Frequencies A Answer Mark 2225 Hz Space 2025 Hz B Originate Mark 1270 Hz Space 1070 Hz Transmit Power 10dBm 1 dB Receive Sensitivity 45dBm Baud Rate 300 Operating Temperature 55 F 85 F 12 8 C 29...

Page 13: ...T WORTH TEXAS 76102 CANADA BARRIE ONTARIO L4M 4W5 TANDY CORPORATION AUSTRALIA BELGIUM U K 91 KURRAJONG ROAD PARC INDUSTRIEL DE NANINNE BILSTON ROAD WEDNESBURY MOUNT DRUITT N S W 2770 5140 NANINNE WEST...

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