Rolls PM351 Owner's Manual

• Remote Powering the PM351

A very useful feature of the PM351 is the ability to send the 12VDC power to the unit via the LINE INPUT
ring connection. Make sure the Mono/Stereo jumper is in the MONO position. Connect the 12VDC to the
Ring of the TRS plug as shown here.
ROLLS WILL NOT BE HELD RESPONSIBLE FOR DAMAGE DONE TO THE PM350 AS A RESULT
OF IMPROPER USE OF THIS FEATURE. IF YOU ARE NOT SURE HOW TO DO THIS CORRECTLY,
Rolls bridge
clip/Jumper
wire explanation
OFF - POSITION
Rolls utilizes a way of switching with a three pin jumper wire system attached to the P.C.B. It uses an external bridge clip to act
as a switch for changing between two preset unit options.
-To switch between options the Bridge clip can be moved from one option/side to the other just like a switch.
-To do this simply grab the bridge clip with a pair of needle nose pliers or tweezers and pull outward from the unit
disconnecting it from the pins of the unit completely.
-The middle pin is utilized in either position. In the above illustration (OFF) the middle pin is connected to the left side pin with
the bridge clip to have the unit OFF.
-To select the (ON) position connect the middle pin and right pin together with the bridge clip as in the illustration below.
Please note that you must follow the silk screening of the unit to know what the jumper wire does and to which side is on or
off. All of our units are different, but great care is taken to insure that the silk screening is correct.
ON - POSITION
CONTACT A QUALIFIED SERVICE TECHNICIAN.
NOTE: This unit cannot be powered by standard 48 Volt Phantom Power
supplied by mixers, phantom power adapters etc. The current (amperes)
is insuffi cient to power the PM351. Also, any voltage greater than 16 VDC
will damage the unit.
off on
off on

SPECIFICATIONS

Max Input Level:
Inst. Input Impedance:
Inst. Output Freq. Response: 10 - 30 kHz +/- 3 dB
Output Impedance, Hdphn: 10 ohms
Output Impedance, Inst.:
Gain:
Hdphn Freq. Response:
S/N Ratio:
Power:
Size (W x H x D):
Weight:
02/09
PM351
Personal Monitor
Station
-20 dB XLR, +40 dB Line, +15 dB Instrument
50K ohms
2 ea; 100 ohms balanced
20 dB 1/4", 50 dB XLR
20 - 20 kHz
90 dB
9 - 16 VDC
4.5" x 3.3" x 1.5"
1 lb (.45 Kg)
Owners Manual