Majorcom: EMAGP16 Podręcznik użytkownika - Strona 7

Przeglądaj online lub pobierz pdf Podręcznik użytkownika dla System mikrofonowy Majorcom: EMAGP16. Majorcom: EMAGP16 13 stron.

Drukuj stronę

EMAGP16

• S crew the back cover back onto the unit chassis.

• I nsert the supplied microphone into the XLR connector on the front panel

• P rogram the operation and settings of the paging console unit from the PAGERS/DUC-

KERS tab of the PXN matrix in the MAJORCOMNet Manager project (see MAJOR-

COMNet Manager manual for extended information)

• F or maximum sound quality and minimum background noise, use a screwdriver to set

the ADJ control on the side of the unit to a high level (increase it by turning clockwise)

and the GAIN control in the affected input of the PXN matrix in the MAJORCOMNet

Manager project (the input to which the audio of the paging station microphone is

connected to) to a low level. You can start from a state with ADJ to maximum and

GAIN to a minimum and adjust them following the above indications until you get

the desired signal levels to broadcast the paging messages in the destination zones.

5.2.2. Compatibility terms and external power supply requirements

It's possible to connect several EMAGPE16units to the same PXN matrix, considering the fol-

lowing conditions:

• E ach EMAGPE16unit needs a minimum DC supply of 8V (measured locally, at the unit's DC

input terminals) to work properly. A console with a measured DC supply (coming

from the PXN88, PXN88SG or PXN1212SG matrix REMOTE port DC wiring)

lower than 8 VDC will always need an external WP24-PSU power supply.

Usermanual V1.1

56, chemin

de la Flambère ·

F a x 3 3 ( 0 ) 5 6 1 3 1 8 7 7 3 · [email protected] ·

31300 Toulouse ·

FRANCE · T é l . 3 3 ( 0 ) 5 6 1 3 1 8 6 8 7

www.majorcom.fr

• G enerally speaking, the REMOTE port(s) of a PXN matrix can directly feed DC supply

to a maximum of 2 EMAGPE16units, but when wiring distances are really long, the

inrush current peak when the system is powered ON may result on the EMAGPE16units

not working (blocked, unsuccessful power up sequence) and CAN bus errors detected

in the PXN matrix (registered in the log report in MAJORCOMNet Manager):

o Cable qualities and conditions may vary a lot and make it difficult to predict with

precision whether a distant EMAGPE16unit may work properly or not with direct

DC supply from the PXN matrix REMOTE port

o The DC voltage measurement (minimum 8 VDC) will be the only trustworthy me-

thod to troubleshoot a dubious case and decide to apply a solution.

• T o resolve the above limitation, two possible countermeasures may be applied

o Option 1 - 100% reliable, always working: the addition of external power

supplies (WP24-PSU model) connected to the EMAGPE16units which do need

it. EMAGPE16units with direct supply from the REMOTE ports of the PXN matrix

and others with external power supply can coexist in the same CAN bus wiring

line

o Option 2: use the spare NC (Not Connected) twisted pair in the Cat5 cable to

double the DC supply line wiring from the REMOTE port in the PXN matrix to the

EMAGPE16unit, thus reducing the wiring line resistance and DC voltage drop

along it

Note 1:

a hot connection of a new EMAGPE16unit to a working PXN system (with the system

powered ON) may result in a reboot sequence of other digital remote controls attached to it, taking

some seconds to recover the normal working conditions of them all.

Note 2:

WP24-PSU is the optional external power supply compatible with the EMAGPE-

16paging console. WP-PSU model is the one compatible with the MPAGE16 paging sta-

Never use one of these two power supplies with

tion and WPTOUCH digital control.

devices not compatible with it.