3.0 CONFIGURATION
The Model 2073 is equipped with two sets of eight DIP switches, which allow configuration of the unit for a wide variety of applications. This section describes switch locations and explains all possible con- figurations.
3.1 CONFIGURING THE HARDWARE DIP SWITCHES
The 16 external switches are grouped into two
Front
Rear
Figure 1. Underside of Model 2073, Showing Location of DIP Switches
The two sets of DIP switches on the underside of the Model 2073 will be referred to as S1 and S2. As Figure 2 shows, the orientation of all DIP switches is the same with respect to “ON” and “OFF” positions.
ON
OFF
Figure 2. Close Up of Configuration Switches (all sets are identical in appearance)
3.1.1 Configuration DIP Switch Set “S1”
S1 Summary Table
Position | Function |
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DTE Data Rate | On |
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DTE Data Rate | On |
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| 64kbps |
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DTE Data Rate | On |
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DTE Data Rate | On |
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Transmit Clock Source | On | } |
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Transmit Clock Source | Off | ||||||||
Reserved | Off |
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V.54 Prep Phase Reception | On |
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| Enabled | |||
Switches S1-1 thru S1-4: DTE Data Rates
The DTE synchronous and asynchronous data are determined by the combined switch settings of
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| 9600 | Off | On | On | Off |
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| 14.4 | Off | On | On | On |
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| 19.2 | On | Off | Off | Off |
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| 28.8 | On | Off | Off | On |
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| 32 | On | Off | On | Off |
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| 38.4 | On | Off | On | On |
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| 48 | On | On | Off | Off |
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| 56 | On | On | Off | On |
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| 57.6 | On | On | On | Off |
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| 64 | On | On | On | On |
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NOTE1: The four data rate configuraton switches are ignored when Octet Timing Mode is selected
NOTE2: Asynchronous rates are 9600, 14,400, and 19,200. To run in asynchro- nous mode, set the 2073 for 64K synchronous to over sample the data bits.
5 | 6 |
