Roland M-480 - Pin Configuration Diagrams; Requirements for Switching Hubs

196
Appendix
Appendix
Cat5e crossover cables
(REAC cables SC-W100S)
fig.PinCat5eCross.eps
INPUT and OUTPUT
Balanced connections are recommended.
If you use unbalanced connections, connect the cold and ground.
• Balanced connection
fig.XLRJack.eps
• Unbalanced connection
fig.XLRJack2.eps
INPUT jacks provide phantom power (+48V/14mA).
Switching hubs used to connect REAC devices must meet the
following conditions:
• We recommend a switching hub that supports 1000BASE-T
(IEEE 802.3ab, Gigabit Ethernet)
• 100BASE-TX interface must be supported (IEEE 802.3u, Fast
Ethernet)
• Full duplex communication (simultaneous bidirectional
communication) must be supported
Caution when using a switching hub
• The network propagation time between REAC devices is
approximately 375 microseconds, but if the signal passes
through a switching hub, there will be approximately 200
microseconds of delay for each unit.
• Up to four switching hubs can be connected in series.
• Connect REAC devices to a switching hub that supports
100BASE-TX.
• Carefully read the owner’s manual of the switching hub you use.
Pin configuration diagrams
Cat5e Ethernet cables
(RJ45 EtherCon type connectors)
Audio jacks (XLR)
TX+
TX-
RX+
RX-
TX+
TX-
RX+
RX-
GND
COLD
HOT
GNDHOT
Requirements for switching hubs
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