C
HEETAH
S
ERIES
S
WITCHERS
–
C
HAPTER
5
81-9059-0570-0
Rev. C
Proprietary Information of
PESA
S
WITCHING
S
YSTEMS
,
I
NC
.
39
5.11
C
HEETAH
128
X
128
C
HASSIS
I
NPUT
/O
UTPUT
S
IGNAL
C
ONNECTORS
These Input/output (I/O) BNC coaxial connectors, located on the rear of the unit (refer to Section 5.12
for I/O locations) provide the input/output signal interface. The video input connectors are internally
terminated into 75
Ω
. Use coaxial cable and a standard BNC connector to connect each source. Input
and output modules can be populated in increments of 16. Input modules provide up to 100m (meters)
of equalization for HD and up to 300m for SDI.
Output modules include both HD/multi-rate and SDI output modules that consist of a single copper
connection. However, daughter boards can be installed to provide a second output per bus. The second
output can be either copper or fiber (single mode or multi-mode). For SDI applications, a DAC monitor
grade, 10-bit output board can be installed as an option. For HD applications, a HD to SD conversion
card can be installed as an option.
In the accompanying figures, the slots labeled with “Option” indicate either dual output or some other
conversion-type slots. (For I/O card removal and installation, refer to Chapter 11.)
5.12
C
HEETAH
128
X
128
C
HASSIS
F
USE
L
OCATIONS AND ASSIGNMENTS
There are eight, 30-amp, plug-in, auto-type fuses located inside the front of the frame as illustrated in
Figure 14. Only three of these fuses provide over-current protection for the associated 64x64 matrix
and I/O cards (see Figures 14 and 15) associated with this chassis.
8
8
8
8
8
8
8
8
MA TR I X FR A ME C ON T R OL LE R
C OMMU N IC A TI ONS
R X
R X
LN K
VT 2
T X
P RC
R X
TX
SC R OLL
R ES ET
AC T IV E
TX
42 2
AC T
N ET
VT 1
+ 28
+ 5
+ 3
C ON TR OL S TA TU S
GND
+ 5V
+B A TT ER Y
R U N
AC T IV E
B A TT ER Y
R ES ET
MOD E
AC T IV E
ST AN D BY
GND
+ 5V
+B A TT ER Y
R U N
AC T IV E
B A TT ER Y
R ES ET
MOD E
AC T IV E
ST AN D BY
8
8
8
8
8
8
8
8
MA TR I X FR A ME C ON T R OL LE R
C OMMU N IC A TI ONS
R X
R X
LN K
VT 2
T X
P RC
R X
TX
SC R OLL
R ES ET
AC T IV E
TX
42 2
AC T
N ET
VT 1
+ 28
+ 5
+ 3
C ON TR OL S TA TU S
PS 600
P WR OK
A LER T
+ 28V
GN D
PS 600
P WR OK
A LER T
+ 28V
GN D
PS 600
P WR OK
A LE R T
+ 28V
GN D
PS 600
P WR OK
A LE RT
+ 28V
GN D
M
a
tri
x
6
4
x
6
4
+2
8
V
+3
.3
V
+2
.5
V
C
T
R
L
E
R
R
IN
U
S
E
M
a
tr
ix
6
4
x
6
4
+2
8V
+3
.3
V
+2
.5
V
C
T
R
L
E
R
R
IN
U
S
E
M
at
ri
x
6
4
x
6
4
+2
8
V
+3
.3
V
+2
.5
V
C
T
R
L
E
R
R
IN
U
S
E
M
a
tri
x
6
4
x
6
4
+2
8
V
+3
.3
V
+2
.5
V
C
T
R
L
E
R
R
IN
U
S
E
Inputs
Outputs
65 - 128
65 - 128
65 - 128
1 - 64
1 - 64
65 - 128
1 - 64
1 - 64
1
2
3
FIGURE 14: 128x128 Chassis Fuse Location and Fuse #3 Assignment
Fuses
1 2 3 4 5 6 7 8
Not used
Inputs
Outputs
65 - 128
65 - 128
65 - 128
1 - 64
1 - 64
65 - 128
1 - 64
1 - 64
I/O Cards
Summary of Contents for Cheetah 1024x256
Page 235: ......
