Electro-Voice P900RL ユーザーズマニュアル
10
CABLING
NF-VERBINDUNGSKABEL
Choosing balanced cables (two conductors for the audio signal plus separate shielding mesh) with
XLR-type connectors is recommended for LF-signal connection. Although connecting unbalanced
cables to the power amplifier inputs is possible as well, using balanced cabling is always preferable. A
great number of today’s audio appliances employ balanced outputs. With balanced cabling, the shield
connects all metal enclosure parts and thus efficiently eliminates the introduction of noise and hum
XLR-type connectors is recommended for LF-signal connection. Although connecting unbalanced
cables to the power amplifier inputs is possible as well, using balanced cabling is always preferable. A
great number of today’s audio appliances employ balanced outputs. With balanced cabling, the shield
connects all metal enclosure parts and thus efficiently eliminates the introduction of noise and hum
.
XLR-type connector pin-assignment
XLR (male)
XLR (female)
REMOTE CONTROL NETWORK
The network of the remote power amps is based on the CAN-bus standard, which for years is
especially popular in automotive, industrial and security applications. The CAN-bus is a balanced
serial interface for command and data transmission. Controlling the power amplifiers is performed
from a PC with IRIS – Intelligent Remote & Integrated Supervision – software installed. The UCC1
USB-CAN Converter serves as interface between the PC and the CAN-bus. Connecting up to 100
power amplifiers per CAN-Bus with a maximum total cable length of 1,000 meters is possible. An
additional CAN-bus is needed for controlling more than 100 power amps while the IRIS software allows
administering a total of 250 power amps.
The network topology used by the CAN-bus is based on the so-called “bus or line topology”, i.e. all
participants are connected via a single two-wire cable (Twisted-Pair cable, shielded or unshielded)
with the cabling running from one participant on the bus to the next, allowing unlimited communication
among all appliances. In general, it does not matter whether a participant on the bus is a power
especially popular in automotive, industrial and security applications. The CAN-bus is a balanced
serial interface for command and data transmission. Controlling the power amplifiers is performed
from a PC with IRIS – Intelligent Remote & Integrated Supervision – software installed. The UCC1
USB-CAN Converter serves as interface between the PC and the CAN-bus. Connecting up to 100
power amplifiers per CAN-Bus with a maximum total cable length of 1,000 meters is possible. An
additional CAN-bus is needed for controlling more than 100 power amps while the IRIS software allows
administering a total of 250 power amps.
The network topology used by the CAN-bus is based on the so-called “bus or line topology”, i.e. all
participants are connected via a single two-wire cable (Twisted-Pair cable, shielded or unshielded)
with the cabling running from one participant on the bus to the next, allowing unlimited communication
among all appliances. In general, it does not matter whether a participant on the bus is a power
amplifier or an UCC1 USB-CAN converter,
so that both – UCC1 and the PC as well
– can be inserted at any position.
Incorporating several UCC1 and PCs
on a single CAN-bus is also possible.
A total of up to 100 appliances can be
operated on a single CAN-bus. Since the
so that both – UCC1 and the PC as well
– can be inserted at any position.
Incorporating several UCC1 and PCs
on a single CAN-bus is also possible.
A total of up to 100 appliances can be
operated on a single CAN-bus. Since the
CAN-interfaces of all appliances are
galvanically separated from the rest of the circuitry, network cabling also carries a common ground
conductor (CAN_GND) ensuring that all CAN-interfaces in the network are connected to a common
ground potential. The UCC1 provides the possibility for switching the CAN-ground to circuit-ground.
conductor (CAN_GND) ensuring that all CAN-interfaces in the network are connected to a common
ground potential. The UCC1 provides the possibility for switching the CAN-ground to circuit-ground.
Each participant on the bus system has two RJ-45 connectors for the Remote CAN-bus. These sockets
are connected in parallel to serve as input and output (for connecting through) for the data transfer
within the remote-network. The CAN-bus has to be terminated at both ends using 120Ω terminator
plugs, two of which – CAN-TERM 120Ω – are supplied with the UCC1. Connect one of these to the
RJ-45 socket of the first and the other to the socket of the last appliance on the CAN-bus
are connected in parallel to serve as input and output (for connecting through) for the data transfer
within the remote-network. The CAN-bus has to be terminated at both ends using 120Ω terminator
plugs, two of which – CAN-TERM 120Ω – are supplied with the UCC1. Connect one of these to the
RJ-45 socket of the first and the other to the socket of the last appliance on the CAN-bus
.