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Figure 7-6.
SDU Interface and Backup Clock Connector Pinouts
Table 7-5. Signal Names and Locations for SDU-2000 Interface
Name
SCLK2+/–
SPI Clock Signal, generated by SPI Master
MOSI2+/–
SPI Master Out / Slave In Data line
MISO2+/–
SPI Master In / Slave Out Data line
SS2+/–
SPI Slave Select line, generated by SPI Master
SBUSY2+/–
SPI Slave Busy line, generated by SPI Slave
SRQ2+/–
SPI Service Request line, generated by SPI Slave
CLKAOUT2+/–
Clock A to Output Modules (synced 4 kHz)
CLKBOUT2+/–
Clock B to Output Modules (synced 4 kHz)
CLKC2+/–
Pass-through Clock from Input to Output Modules (4 kHz)
CLKD2+
Selected Clock via TBNC/BNO to SDU-2000 (Backup 4 kHz)
CLKD2–
Selected Clock via TBNC/BNO to SDU-2000 (Backup 4 kHz)
EXPSP1+/–
Spare Connection to SDU-2000
EXPSP2+/–
Spare Connection to SDU-2000
SOUT2+/–
SPI Expansion Shelf Select Request, generated by SDU SPI
Slave
LG
Logic Ground Connection
12713020-003-2 Revision F.01 – January 2007
Description
Chapter 7 Connector Pinouts
Signal Names and Definitions
Connector–Pin
J8-1&14
J8-2&15
J8-3&16
J8-5&18
J8-4&17
J8-6&19
J8-7&20
J8-8&21
J8-9&22
J9-A
J9-B
J8-11&24
J8-12&25
J8-10&23
J8-13
SSU-2000 Technical Reference 341
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