Cheetah 64NE, Руководство пользователя

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C
HEETAH
S
ERIES
S
WITCHERS
– C
HAPTER
2
81-9059-0577-0 Rev. E
Proprietary Information of PESA Switching Systems 2-1
Chapter 2 C
HEETAH
64 S
ERIES
I
NTRODUCTION
2.1 C
HEETAH
64 S
ERIES
P
RODUCT
O
VERVIEW
Cheetah 64 series switchers are full-featured video matrix switchers capable of handling Serial
Digital Interface (SDI) and High-Definition Television (HDTV), as well as other non-standard
digital signals, in the same frame. Copper and optional fiber input and output modules provide for
maximum flexibility.
2.2 C
HEETAH
64 S
ERIES
S
WITCHERS
A
NALOG
S
UPPORT
Additionally, PESA offers analog cards for the Cheetah 64 series switchers, which will allow users
to maintain legacy equipment during the transition to digital or single-ended, general purpose
NTSC video transmission applications such as video data for telemetry, radar, surveillance, high-
level TTL video switching, and 75
Ω
audio. The analog inputs can accept signals from DC to the –
3dB roll-off at 50 MHz with voltages up to ±2V standard and ±5V for high level.
To maximize the analog offering for the Cheetah 64 series, all frame sizes (64NE, 64XE, and
64WE) will accept analog matrix and I/O cards. Cheetah 64 series system configurations will
allow partitioning for either all analog or all digital cards to reside in the same frame in blocks of
64x64 and 64x128. The 64NE, 64XE, and 64WE frames can be configured for either all digital or
all analog.
The following types of analog I/O cards are available:
•
Basic analog input cards, output cards, and matrix cards with maximum bandwidths of 50
MHz.
•
Analog input cards and an output cards for high-level signals to support telemetry or other
types of sine wave signals with voltage levels to a maximum of ±5V p-p.
Basic analog output cards and the High-Level cards will accept the optional dual-output, piggyback
cards.
The frame architecture for the analog model uses common components from sister HD/SD frames,
thus allowing for easy future migration to full digital. Power supplies and matrix control cards are
the same for Cheetah 64 series analog versions.