Clear-Com FOR-22 - Manual (Page 11)

Vitec Group Communications
FOR-22 Dual 4-Wire Interface Instruction Manual 2 - 3
Figure 2-2: IMF-102 Interface Frame Rear Panel
For more information on the IMF-102 interface frame, refer to the
Interface Module Frames Instruction Manual in the Eclipse manual set
(part no. 810313Z).
INSTALLING THE FOR-22 IN AN INTERFACE
FRAME
IMF-3 INTERFACE FRAME
This section describes how to install an FOR-22 unit in an IMF-3
frame. There are certain options available on the FOR-22 that can be
changed before installation. The audio output level can be set to
different ranges depending on the type of input is being driven. The
input of a channel can have a bridged pad added to allow higher input
levels.
To install the FOR-22 interface module in the IMF-3 interface frame:
1. Select a slot to install the interface in.
2. Remove the blank plate covering the slot.
3. Set any necessary Audio Output Level Jumpers.
4. Set any necessary Audio Input Level modifications.
5. Slide the FOR-22 in the slot and ensure that the card is fully seated.
6. Tighten the FOR-22's front panel mounting screws.
IMF-102 INTERFACE FRAME
The IMF-102 interface frame contains two slots for installing interfaces.
Interfaces are installed horizontally in one rack unit (1 RU) of a
standard Electronics Industry Association equipment rack.
You install the FOR-22 interface in an IMF-102 interface frame as you
would install an interface in an IMF-3 interface frame.
AUDIO OUTPUT LEVEL JUMPER
The audio output is transformer isolated. There is a jumper field for
each channel that allows three basic operating levels depending on
what type of external input is being driven. The following levels can be
produced by each channel:
• Line level ------------------------- 0.0 dBu at 600 ohms
• Clear-Com IFB level ------------ -15 dBu at 200 ohms
CH.A
Marix
CH.A
I/O
CH.B
Matrix
CH.B
I/O
CH.A
Marix
CH.A
I/O
CH.B
Matrix
CH.B
I/O