Setup Guide Instruction Manual
5-2
Refer also to the FOX 4G Matrix Switchers User’s Manual at www.extron.com. Refer also to the FOX 4G Matrix Switchers User’s Manual at www.extron.com.
Removing and Installing an I/O Board or Blank 
Panel
W
 The FOX 4G Matrix Switchers fiber optic I/O boards 
output continuous invisible light, which may be 
harmful and dangerous to the eyes; use with caution.
•  Do not look into the rear panel fiber optic 
cable connectors or into the fiber optic cables 
themselves.
•  Plug the attached dust caps into the optical 
transceivers when the fiber optic cable is 
unplugged.
N
  As factory configured, the fiber optic I/O boards are 
configured as either 100 percent singlemode or 100 percent 
multimode, but you can remove a fiber optic transceiver 
module (one input and one output) of one transmission 
mode and replace it with a block of the other transmission 
mode.
You can mix transmission mode transceiver modules on 
a fiber optic I/O board, provided that you ensure that 
each fiber cable and connected devices are the appropriate 
transmission mode for the transceiver module.
Typically, singlemode fiber has a yellow jacket and 
multimode cable has an orange jacket.
N
  For proper cooling and air flow, boards and/or blank panels 
should be installed in all locations during normal switcher 
operations.
N
  See "A note on I/O boards", on page 2-2, to understand the 
different arrangement of connectors on the I/O boards.
Circuit boards can be added or removed to increase or decrease 
the I/O configuration (size) of the switcher.
Remove and replace and I/O board or blank panel as follows:
N
  The I/O boards are hot-swappable. You do not need to 
power down the switcher to remove an I/O board.
1.  For an I/O board, disconnect any connected cables.
2.  Rotate the left and right knurled knobs to completely 
loosen the captive screws.
3.  Gently pull on the knurled knobs/captive screws to loosen 
the board or panel from the backplane.
4.  Slide the board or panel out of the chassis (next page).
ANAHEIM, CA
RESET
REMOTE
RS-232/RS-422
LAN
BI-LEVEL
TRI-LEVEL
ACT LINK
100-240V 50/60Hz 1.2A MAX.
100-240V 50/60Hz 1.2A MAX.
REDUNDANT
PRIMARY
DISCONNECT BOTH POWER
CORDS BEFORE SERVICING
SWITCH
REFERENCE
PRIMARY POWER SUPPLY
REDUNDANT POWER SUPPLY
1 - 8
9 - 16
A
B
C
D
E
F
G
H
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
17 - 24
A
B
C
D
E
F
G
H
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
25 - 32
A
B
C
D
E
F
G
H
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
Align with
Plastic Guides
IN
OUT
IN
A
OUT
IN
B
OUT
IN
C
OUT
IN
D
OUT
IN
E
OUT
IN
F
OUT
IN
G
OUT
IN
H
Knurled Knobs
C
  Do not touch the electronic components or the 
connectors on the backplane or on the circuit boards 
without being electrically grounded. Handle circuit 
boards by their edges only. Electrostatic discharge can 
damage circuits, even if you cannot feel, see, or hear it.
5.  Place the removed board on an anti-static surface or in an 
anti-static container.
6.  For an I/O board, orient the board to be installed so 
that transceiver module A (fiber board) or input BNC A 
(SDI/HD-SDI board) is on the left and transceiver module 
or output BNC H is on the right.
7.  For an I/O board, align the board with the left and right 
chassis guides (above).
8.  Gently slide the board or blank panel into the enclosure. 
For an I/O board, slide the board toward the front panel 
until it meets resistance.
9.  Gently seat the board or panel in the backplane.
10.  Tighten the left and right knurled knobs/captive screws to 
lock the board or panel in place.
N
  If necessary, use a screwdriver to tighten the knurled 
knobs/captive screws.
FOX 4G Matrix Switchers • Maintenance and Modifications
Maintenance and Modifications
FOX 4G Matrix Switchers • Maintenance and Modifications
5-3










