Cheetah 64NEX Digital Video Router
Publication 81-9059-0685-0, Rev. A
March 2011
Proprietary Information of PESA
4-9
4.9.2
RS-422 Control Connectors COM3/PRC
This DB-9 Male connector (see Figure 4-6) provides an RS-422 serial communication interface.
F
IGURE
4-6
RS-422
COM 3/PRC Control Connector
COM 3/PRC is the communications interface to a PRC type routing switcher system and is
connected to a routing switcher with a serial control cable (refer to Table 4-4 for pin
assignments).
T
ABLE
4-4
COM 3/PRC Pin Assignments
Pin
Signal
In/Out
1
CTS+
Input (not used)
2
Bi-directional
3
CTLR-
Output
4
RTS-
Output (not used)
5
Ground
---
6
CTS-
Input (not used)
7
MATRIX-
Bi-directional
8
CTLR+
Output
9
RTS+
Output (not used)
Pin 1
Pin 9
Содержание 64NEX
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