Make sure that the power of the DSP unit is on. These error displays indicate an error for the INPUT/ OUTPUT A connectors if the PORT B SELECTOR switch is set to 5-8, and indicate an error for the INPUT/OUTPUT B connectors if the PORT B SELECTOR switch is set to 1-4. Even if there is an incorrectly connected connector, the error display will not appear if there is another control connector that is usable. UL: The word clock is not locked. Make sure that the word clock source is selected correctly, and that the cable is connected correctly. B PORT B SELECTOR switch Use this switch to select slots 1-4 or slots 5-8 to assign the INPUT A/OUTPUT A connectors (referred to as PORT A) and the INPUT B/OUTPUT B connectors (referred to as PORT B). If the PORT B SELECTOR is set to 5-8, slots 1-4 are assigned to PORT A and slots 5-8 are assigned to PORT B for input and output signals. If the PORT B SELECTOR is set to 1-4, only PORT B is available for input and output signals via slots 1-4. In reality, slot 1-4 input signals are routed to OUTPUT A, and the INPUT B signal is output to slots 5-8. If you wish to route slot 1-4 signals to both OUTPUT A and B, use this setting. To connect the DIO8 to the DSP1D/DSP1D-EX, make one of the following settings, depending on your application. Using slots 1-8 of the DIO8 with a single DSP1D/DSP1D-EX 1) Connect the INPUT A and B connectors of the DIO8 to OUTPUT slot 1-6 of the DSP1D/DSP1D-EX. 2) Connect the OUTPUT A and B connectors of the DIO8 to INPUT slot 1-10 of the DSP1D/DSP1D-EX. 3) Set the PORT B SELECTOR to 5-8. Using slots 1-4 of the DIO8 with two DSP1D/ DSP1D-EXs for Mirror mode operation 1) Connect the INPUT A connector of the DIO8 to the OUTPUT slot 1-6 connector of the first DSP1D/ DSP1D-EX. 2) Connect the INPUT B connector of the DIO8 to the second DSP1D/DSP1D-EX OUTPUT slot connector with the same number as the first unit’s slot you connected in Step 1). 3) Connect the OUTPUT A connector of the DIO8 to the INPUT connector for INPUT slot 1-10 of the first DSP1D/DSP1D-EX. 4) Connect the INPUT B connector to the second DSP1D/DSP1D-EX OUTPUT slot connector with the same number as the first unit’s slot you connected in Step 3). 5) When you place the unit into Mirror mode from the CS1D, the PORT B SELECTOR changes its setting, depending on the operating status. Note: You can change the PORT B SELECTOR setting by sending the control signal from the CS1D. At this time, two dots (“. .”) light up besides the indicator message described above. If the PORT B SELECTOR switch setting on the unit is different from the actual operation, one of the following messages and the indicator message described above will appear alternately. • If the PORT B SELECTOR switches to slots 1-4: “ ” • If the PORT B SELECTOR switches to slots 5-8: “ ” .............. .............. .............. .............. .. .............. .............. .............. .............. .. ....................................................“......” ................ .............. ................ .............. .............. .............. .............. ............ ....................................................“......” ................ ................ .............. . 1) Connect the INPUT A connector of the DIO8 to OUTPUT slot 1-6 of the first DSP1D/DSP1D-EX. 2) Connect the INPUT B connector of the DIO8 to the second DSP1D/DSP1D-EX OUTPUT slot connector with the same ID number as the first unit’s slot you connected in Step 1). 3) Connect the OUTPUT A connector of the DIO8 to the INPUT connector for INPUT slot 1-10 of the first DSP1D/DSP1D-EX. 4) Connect the INPUT B connector to the second DSP1D/DSP1D-EX OUTPUT slot connector. 5) Set the PORT B SELECTOR to 1-4. Slot 1-4 input signals will be output from OUTPUT A and B. However, the output signal will be the same as the signal input to INPUT B. C POWER ON/OFF switch Use this switch to turn the power to the DIO8 on and off. When the power is turned on, the I/O UNIT ID indicator lights up. D WORD CLOCK IN jack, ON/OFF switch The WORD CLOCK IN jack is used to provide word clock to the DIO8 from a clock generator or a connected external device. Use a BNC cable with an impedance of 75 . for connection. The WORD CLOCK ON/OFF switch is used to terminate the word clock connection. Basically, if the DIO8 is the last device of the word clock chain, or if nothing is connected to the WORD CLOCK IN/OUT jacks, set this switch to ON. E WORD CLOCK OUT jacks The WORD CLOCK OUT jacks are used to provide word clock from the DIO8 to the connected external device, such as digital MTR or DAT recorder. Use a BNC cable with an impedance of 75 . for connection. Caution: If you are using the MY8-AT card to handle ADAT format signals, synchronization may tend to be lost easily depending on the device that is con nected. For the most reliable synchronization, we recommend that the word clock for digital audio devices being used together be taken from a con nector other than the ADAT-...