TrueTime VME-SG2 560-5608, Руководство пользователя

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1.6.4 I/O CONNECTOR SPECIFICATIONS
1. VME P2/J2 Connector
Table 1-1
Note:
Gen Codes and Ref Codes are IRIG B format.
Ref Code Out (RS-422) is the Ref Code Input signal re-driven through an
RS-422 driver for daisy chained systems.
2. Front Panel BNC Connectors
a. External Event Input
The External Event input is available on the front panel BNC labeled EXT
EVENT. This input is in parallel with the same input on the P2/J2
connector.
b. Reference Code Input
The amplitude modulated time code input is available on the front panel
BNC labeled CODE IN. This input is in parallel with the same input on
the P2/J2 connector.
c. Generator Code Output
The amplitude modulated time code output is available on the front panel
BNC labeled GEN CODE. This output is in parallel with the same output
on the P2/J2 connector.
d. 1PPS Output
The 1 pulse per second (PPS) output is available on the front panel BNC
labeled 1PPS. This output is in parallel with the same output on the
P2/J2 connector.
PIN # ASSIGNMENT PIN # ASSIGNMENT
C1 1PPS OUT A1 GND
C2 RATE PULSE OUT A2 GND
C3 CODE INPUT (AM) A3 GND
C4 TIME COMP #1 OUT A4 GND
C5 TIME COMP #2 OUT A5 GND
C6 INTERVAL OUT A6 GND
C7 EXT EVENT INPUT A7 GND
C8 EXTERNAL OSC INPUT A8 GND
C9 GEN CODE OUT DC (TTL) A9 GND
C10 GEN CODE OUT AM A10 GND
C11 GEN CODE OUT (RS-422)+ A11 GEN CODE OUT (RS-422)-
C12 REF CODE IN (RS-422)+ A12 REF CODE IN (RS-422)-
C13 REF CODE OUT (RS-422)+ A13 REF CODE OUT (RS-422)-
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