ARRI WRS, Системное руководство

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W R S
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System Guide 04/2006
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The radio modem provided with the WMU-3, Arricam Studio LDB-2, Arricam Lite LDB-2,
UMC-3 and URM-3 offers several advantages over previous units, including smaller size,
less power comsumption and improved transmission. Due to these improvements, it cannot
cross-communicate with the previous radio modems originally used in the WMU-1, original
Arricam Studio LDB, original Arricam Lite LDB or Radio Modem URM-1.
However, all of these units can be upgraded via installation of the new radio modem.
In order to maintain discrete designations for all WRS units, a naming convention was ad-
opted as follows:
<_hij][d[hWj_edkd_jm_j^\_hij][d[hWj_edhWZ_eceZ[c0 NNN#'
<_hij][d[hWj_edkd_jm_j^i[YedZ][d[hWj_edhWZ_eceZ[c0 NNN#(
I[YedZ][d[hWj_edkd_jm_j^i[YedZ][d[hWj_edhWZ_eceZ[c0 NNN#)"
where „XXX“ denotes the actual unit referred to: for example, „WMU-3“ would be the
Wireless Main Unit, second generation with second generation radio modem.
To denote presence of the second generation radio modem, a colored washer has been added
to the antenna port. The color of this washer was originally blue. However, with advances in
video transmitter technology, a software change was necessary to minimize interference. To
denote the software change, a green washer replaces the blue washer. It is important to note
that units with green washers cannot communicate with units with blue washers.
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There are two ways to connect the hand controllers with cables to the cameras: First, the
Wired Handgrip Attachments WHA-2 or WHA-3 connect with cables to the cameras, and
the hand controllers can be attached to them. Use cables LC-M1, LC-Z1 or LC-Z2 to con-
nect to the LCS port of a 435 Xtreme, ARRICAM, 416 Plus, or UMC-3; use cable KC-70
to connect to the CAC port of an ARRICAM. The Wired Handgrip Attachment WHA-1
connects the Wireless Remote Control WRC-1 with cable WC-W1 to the CCU port of the
ARRIFLEX 435, 535 and 16 SR 3 or to the remote port of the ARRIFLEX 235.
Second, it is possible to connect a cable between the antenna connector of the hand radios
and the camera radios. Cable WC-A3 can be used to connect the WMU-1 antenna connector
to the antenna connector of URM-1, Studio LDB or Lite LDB. The same cable is also used
to connect the WMU-2 or WMU-3 to the antenna connector of URM-2, URM-3, Studio
LDB-2 or Lite LDB-2. You can also use the WC-A3 cable to connect the WMU-3 to the
UMC-3. Don’t use cable WC-A1. Authorized ARRI Service Centers can upgrade cable
WC-A1 to WC-A3.
Please note that with or without cable, compatibility between units is dictated by radio
modem compatibility as described in „New Radio Modem“ above.
Cable WC-A2 can be used for extending the antenna away from a radio unit.
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