REAR VIEW
RS-232 INTERFACE
The RS-232 interface is for connecting media control systems as well as building management systems providing control and monitoring of all
parameters. Communication is established via an easily to implement ASCII- protocol allowing trouble-free integration of Remote Amplifiers in media and
systems. For a programmer’s guide and complete protocol description, please re- fer to the documentation accompanying the IRIS software.
ADDRESS
The address selection switch allows setting the amplifier’s network address, which, within a CAN-network, can range from 01 to 250 (FA hex). Caution: Each address may exist only once within a network. Otherwise network conflicts might occur. Address setting has to be performed in hexadecimal code. The selection switch LOW represents the low-value digit while the HIGH-switch represents the high-value digit.
Adress-Table:
HIGH | LOW | Adress | HIGH | LOW | Adress |
| | | | | | | | |
0 | | 0 | Stand-alone | 8 | 0 ... | F | 128 ... | 143 |
| | | | | | | | | |
0 | 1 | ... F | 1 ... | 15 | 9 | 0 ... | F | 144 ... | 159 |
| | | | | | | | | |
1 | 0 | ... F | 16 ... | 31 | A | 0 ... | F | 160 ... | 175 |
| | | | | | | | | |
2 | 0 | ... F | 32 ... | 47 | B | 0 ... | F | 176 ... | 191 |
| | | | | | | | | |
3 | 0 | ... F | 48 ... | 63 | C | 0 ... | F | 192 ... | 207 |
| | | | | | | | | |
4 | 0 | ... F | 64 ... | 79 | D | 0 ... | F | 208 ... | 223 |
| | | | | | | | | |
5 | 0 | ... F | 80 ... | 95 | E | 0 ... | F | 224 ... | 239 |
| | | | | | | | | |
6 | 0 | ... F | 96 ... | 111 | F | 0 ... | A | 240 ... | 250 |
| | | | | | | | |
7 | 0 | ... F | 112 ... | 127 | F | B ... | F | reserved |
| | | | | | | | | |
Address 0 (00 hex, factory-pre-set) ensures that the amplifier is separated from the remote communication, so that it does not appear in the system set-up even though it might be connected to the CAN-bus. When the amplifier is powered-on with its address set to “0”, all internal parameters are set to “0” respectively to bypass and the routing is set to 2-in-2. In that case the amplifier behaves absolutely linear, i.e. signal processing is deactivated.
REMOTE CAN BUS
Each amplifier employs two RJ-45 sockets for Remote CAN-bus connection. The sockets are parallel connected and serve as input as well as for
connecting through of the Remote network. Common RJ-45 patch
cables can be used for rack-shelf cabling. The CAN-bus needs to be
terminated at both ends using a 120ohms termination plug. Detailed
guidelines concerning cabling and bus length are provided in the chapter
“REMOTE CONTROL NETWORK”.
Both RJ-45 sockets additionally carry the balanced audio monitor signal. The nominal output level is +6dBu (1.55V) while the maximum output level is +21dBu (8.7V).
Connector Pin-Assignment:
