Roland S-1608 Wheelchair User Manual


 
6—Using the S-1608/S-0816 System
S-1608/S-0816 Digital Snake Owner’s Manual 41
REAC Cable Length Extension
If necessary, the REAC cable length can be extended by placing a REAC Splitter S-4000-SP or Ethernet
switching hub in-line to refresh the REAC signal. Multiple splitters and switching hubs can be used (up
to four total), with a maximum cable length of 100 meters between hubs. (Total cable length with
four switching hubs: 500 meters.)
Use Cat5e straight-through cables to connect REAC devices to the ports on the switching hub. If
multiple hubs are used, use Cat5e crossover or straight-through cables to connect hub-to-hub.
fig.6-21.eps
REAC Connection Notes
The REAC connection can be “hot-swapped”—that is, connections can be made when the S-
1608 and S-0816 units are powered on.
In some circumstances, this connection may result in brief noise at the system’s audio outputs. To
avoid this, turn down the volume and/or power off any devices connected to the S-1608/S-
0816. Or, connect/disconnect the REAC cable while [MUTE ALL OUTPUTS] is held.
If the REAC cable is disconnected while [MUTE ALL OUTPUTS] is held, it’s possible that one of the
S-1608 or S-0816 will remain in a muted state when [MUTE ALL OUTPUTS] is released. If this
occurs, use the following procedure:
1. Reconnect the REAC cable.
2. Press and release [MUTE ALL OUTPUTS].
See Chapter 5 for a discussion about Ethernet cables. See the Appendices for a cable wiring diagram
and Ethernet switching hub requirements.
Some switching hubs have ports that allow the use of either crossover or straight-through cables—
they will detect the type of cable that’s connected and adjust the signal transfer accordingly. Consult
the documentation for the switching hub to determine what type of cables can be used.
Up to 100 meters Up to 100 meters
REAC Splitter S-4000-SP
or Ethernet switching hub
SC-W100S or Cat5e cable SC-W100S or Cat5e cable
S-1608
S-0816
S-1608_e.book 41 ページ 2007年4月23日 月曜日 午後12時57分