General Information; Pre -Installation Considerations; Phone Line; Radio Programming - CPI MCR211A Instruction Manual

MCR/TSR Alpha Series Remotes
G I
ENERAL NFORMATION
The Alpha series remote control unit, when combined with the appropriate termination panel, provides:
•
a reliable means of remotely controlling specific radio models from various manufactures
•
an LCD channel display, channel/system/group/zone controls, scan control with indicator, intercom button,
privacy button with indicator, speaker, volume control, and other functions that vary by model
•
a maximum of 50 parallel remote units may be connected to the control station via the termination panel
P -I
RE NSTALLATION

Power

The remote is powered from 120V 60Hz AC using the supplied wall pack transformer. In most cases, when the
supplied wall pack is used, a standard grounded outlet is acceptable. An ideal ground point would consist of a ½
inch copper rod driven six feet into the earth with at least a #16 AWG copper wire connecting it to the GND terminal
of the remote, taking the shortest path possible. A 12 to 16VDC source may be used in place of the wall pack.

Phone line

For proper operation, use of a high quality voice grade circuit such as a leased line or in-house twisted pair wiring is
required. DC continuity is not required. Connection is made to the remote via the supplied six foot modular cord.

Radio Programming

See MCP/TSP series termination panel manual and refer to appropriate matching term panel for required radio
programming in order for system to operate correctly.
I
NSTALLATION
The Alpha series remotes are a specialty remote and require the matching termination panel and radio to operate.
DTMF signaling is used to communicate between the remote and term panel. A standard tone remote or panel will
not work on the system.
Phone Line
Phone line connections are made using the supplied modular line cord. Only the two center conductor wires (the
red and green) are to be connected and used on a two wire system. Do not connect the black and yellow on a two
wire system. The four center conductor wires (the red, green, black, and yellow) are used on a four wire full duplex
system. They are not polarity sensitive. Alpha remotes are shipped from the factory in the two wire mode. Refer
to "Table 1 - Dip Switch Settings" to configure for four wire full duplex mode.
Power
Power connections consist of plugging the wall pack in the nearest grounded AC receptacle. If DC power is
required, remove the wall pack and connect the positive supply lead to terminal 1 of J3 and the negative supply
lead to terminal 2 of J3.

Parallel operation

Up to 50 Alpha series remote may connected in parallel. As parallel remotes are installed, the set up procedure
need only to be performed on the new remote(s).
S A
ETUP DJUSTMENTS
Most adjustments can be accessed through the bottom of the remote (see page 11 for pictorial).

Line Balance

Terminate the phone line at the radio end by the appropriate MCP/TSP termination panel. Remove the screws
securing the top half of the housing to access R43. Power up the unit with the handset on-hook and the PTT switch
on the handset pressed or the PTT pressed down on deskmic version. You should now hear a test tone on the
speaker (adjustment of the volume control may be necessary). Adjust R43 until the tone heard is at minimum or
null setting. Line balance is now complete. Lifting the handset off-hook or pressing the monitor on the deskmic will
end the test tone.

Rx Audio

The RX adjustment (R1) has been factory set to function with input levels from -10dBm to +10dBm.
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C
ONSIDERATIONS