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3. Connections
MRKP1 to MRC88m and Expansion Keypads
Each RJ-45 connector under each PREAMP OUT (1 – 8) is considered a “Zone
port”. This Zone port interfaces with MRKP1 Keypad through CAT-5 cables.
These connectors carry command/control information between the keypad and
the MRC88m. Connect CAT-5 cables terminated to an RJ-45 connector from
each Keypad to the corresponding RJ45 connector of the MRC88m as shown
below. (See Specifications section for maximum length of Cat-5 cables)
Figure 3.0: MRKP1 to MRC88m with expansion keypads
Note
: Four keypads maximum per zone. Remove termination jumper on all
keypads except for the last keypad (see item #5 on Fig 2.3). Each expansion
keypad must each have its own unique address. (see Inst. Setup Menu on
Section 4 of this manual)
Zone 2
Zone 1
Zone 8
MRKP1 Rear
Zone 4
IR emitter
Zone 1
IR emitter
MRKP1 Rear
MRKP1 Rear
MRKP1 Rear
MRC88m Rear
RJ45 Zone
ports
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Internal IR Receiver
The internal IR receiver is located beneath the center of the keypad’s face
plate. The internal IR receiver receives IR commands for the MRKP1 and for
the MRC88m. It will also pass-thru IR remote control commands to audio
sources, via an emitter, to each of the sources connected to the MRC88m. The
internal IR receiver is interference friendly. However, some optically noisy
environments may require the use of an external IR receiver. (See Figure 3.2
for details on using an external IR receiver)
Figure 3.1: Internal IR Receiver and
Compatible Handheld remotes
The MRKP1’s minimal design necessitated the presence of a minimum number
of buttons. As a result, a handheld remote controller, such as a Xantech RC68
or MREM is required for accessing other control functions of the source such as
navigation, menu, and transport controls. Other programmable Xantech
remotes such as XTR39 can also be used. The list of RC68 codes is available
at www.xantech.com/Controls/KeypadsRemotes/Remotes/MREM, in the
Products page, under “MREM Code List”.
(Note: RC68 commands may not be used with projects created in Quick
Config
TM
)
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