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| RS232 QUERIES | |
NAME | QUERY | RESPONSE | EXAMPLE |
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Zone Power | ?{z#}PR+ | ?{z#}PR{0/1}+ | ?7PR0+ |
Input Select | ?{z#}SS+ | ?{z#}SS{s#}+ | ?5SS3+ |
EXPLANATION
Power in zone 7 is OFF. Zone 5 is Source 3.
[6] AC POWER INPUT
Standard IEC
[7] RS232 EXPANSION
The HD44C and HD44CC5 can be expanded into a larger system. By using any combination of the HD44C and HD44CC5 (up to 8 systems), a larger
For instance, two HD44C systems can be combined to create a much larger 4 source input to 8 zone output. The two HD44C systems must have its own unique address (see ADDRESS (DIP SWITCH) section). The included RS232 expansion cable allows a single RS232 control port to be used to command the entire system. The expansion cable is connected between the DB9 (5) and 3.5mm stereo mini jack (7).
DB9 MALE
CIRCUIT | PIN |
TX | 2 |
RX | 3 |
GND | 5 |
3.5MM PLUG
PLUG | CIRCUIT |
TIP | TX |
RING | RX |
SLEEVE | GND |
[8] ADDRESS (DIP SWITCH)
Switch 1 & 2: Unit Address (for Expansion mode)
ADDR | SW 1 | SW 2 |
UNIT 1 | ON | ON |
UNIT 2 | ON | OFF |
UNIT 3 | OFF | ON |
UNIT 4 | OFF | OFF |
Switch 3: ON for firmware write protect
Switch 4: ON for front panel IR receiver / OFF for rear panel IR receiver
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08905071A | - 4 - |