Toa D-2000 Series Installation - Manual (Page 18)

18
2.4. Optional Modules
Notes
• Make sure that the power is switched OFF before attaching or detaching modules.
• To avoid failures due to static electricity, do not touch the parts or terminals on the circuit board of both the
unit and module.
• Ensure that the module is installed and secured with screws in the correct position.
• Cover idle slots with the blank panels attached to the unit as shipped by the factory.
• Two silver slotted screws at the upper and lower portion of the module face are handles used for module
detachment. Never rotate them because they do not function as screws.
2.4.1. D-921F Microphone/Line Input Module
GND LIFT
NORMAL
GND LIFT
NORMAL
2
1
MIC/LINE INPUT MODULE [–50 / –36 / –10 / +4 dB]
model D-921F
1
2
3 : E
: H
: C
1
2
1. Monaural input terminal [1, 2] (XLR-3-31 equivalent)
Electronically-balanced input terminal.
(Pin 1: Ground, Pin 2: Hot, Pin 3: Cold)
Use XLR-3-12C or equivalent for connection.
Input sensitivity (–50/–36/–10/+4 dB) and
phantom power (+15 V) ON/OFF can be set by
a PC using the setting software supplied with
the D-2008SP.
2. Ground lift switch [GND LIFT/NORMAL]
Hum noise may be generated due to ground loops created when the unit
is connected to other equipment. Setting the switch to the GND LIFT
position cuts the ground loop.
2: Hot
1: Ground
3: Cold
2.4.2. D-921E Microphone/Line Input Module
3. Monaural input terminal [1, 2]
Electronically-balanced, removable terminal block.
(H: Hot, C: Cold, E: Ground)
Input sensitivity (–50/–36/–10/+4 dB) and phantom power (+15 V)
ON/OFF can be set by a PC using the setting software supplied with the
D-2008SP.
Note
Be sure to use the supplied removable terminal plugs (3P) for
connection.
4. Ground lift switch [GND LIFT/NORMAL]
Hum noise may be generated due to ground loops created when the unit
is connected to other equipment. Setting the switch to the GND LIFT
position cuts the ground loop.
E
C
H
E
C
H
GND LIFT
NORMAL
GND LIFT
NORMAL
2
1
MIC/LINE INPUT MODULE
[–50 / –36 / –10 / +4 dB]
model D-921E
3
4
GND LIFT
1
MIC/LINE INPUT
MODULE
Handle