User manual ELECTRO-VOICE PWS

[. . . ] The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficent magnitude to constitute a risk of electric shock to persons. install in accordance with the manufacture's instructions. Do not install near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or the grounding-type plug. [. . . ] Screw CAN-Bus coupler and a front unit together, connect additional front units See chapter PWS-C, PWS-4, etc. Power-on the central control unit and power supply of the programmable wall station Configure the programmable wall station in IRIS-Net Have all units been detected that are connected to the CAN-Bus?For mounting a programmable wall station you have to lock the PWS-C and a front unit of a programmable wall station together using two screws. Using the supplied connection cables, connect additional front units. Please also refer to this manual's corresponding chapters describing the connection procedure for the front units being used. Large networks require a lower baud rate (down to the minimum baud rate of 10 kbit/s). The following table illustrates the relationship between baud rate and bus length, i. Potential baud rates and corresponding switch settings are shown in the following table. Only when set to PROG Mode, it is possible to change the programmable wall station's baud rate via IRIS-NetTM. With all other switch settings, the previously selected value for the baud rate is maintained. A dark shaded field in the table marks the default value when shipped. Changing a previously set fixed baud rate is not possible via IRIS-NetTM. The PWS must be in PROG mode to allow the changing of the baud rate via IRIS-NetTM. As shown in the above table, setting a fixed baud rate is possible when connecting a PWS-C to an already existing CAN-Bus. When connecting a PWS-C in PROG mode, setting the baud rate directly on the PWSC is possible by following these instructions: 1. Wait until the new baud rate is adopted, which is signaled by a dimmed CAN-Status-LED. The CAN-Status-LED light for 3 seconds whenever changes are applied to the DIP-switches with the power supply being activated. The new setting is adopted only when the CAN-Status-LED is dimmed. PROG mode settings with DIP-switch TERM/BAUD (see page 12) The PWS-C can now be taken into operation with the baud rate set under step 2. Both ends of a CAN-Bus have to be terminated using a 120 terminator. Missing or erroneous termination can result in malfunction. contact 4 of DIP-switch 1 allows activating the PWS-C's integrated terminator (see the following table). [. . . ] In order to prevent or minimize reflections at the bus ends, terminators are used as they "absorb" the energy of the signal. Since the CAN interfaces of all EVI Audio appliances are galvanically separated from the rest of the circuitry, network cabling also carries a common ground conductor (CAN_GND) ensuring that all CANinterfaces in the network are connected to a common ground potential. By using a CAN bus repeater a connection between two independent and self-contained CAN bus systems can be created. Number of members A maximum of 100 devices can be connected to one CAN bus. [. . . ]