Communication Interfaces; Signal Names And Definitions For Power And Ground; Pinouts Of Communications Interfaces - Symmetricom SSU-2000 Technical Reference

Synchronization supply unit and synchronization distribution unit
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Table 7-1. Signal Names and Definitions for Power and Ground
Name
APWR
ARTN
BPWR
BRTN
LG
FG

Communication Interfaces

Figure 7-3
shows the communications interfaces on the rear panel of the
SSU-2000.
Table 7-2
Communications connectors.
Figure 7-3.
Communications Interface Pinout
Table 7-2. Pinouts of Communications Interfaces
Name
DCD-A
Serial Port A, Data Carrier Detect Control Line
DSR-A
Serial Port A, Data Set Ready Control Line
RXD-A
Serial Port A, Received Data
RTS-A
Serial Port A, Request to Send Control Line
TXD-A
Serial Port A, Transmitted Data
CTS-A
Serial Port A, Clear to Send Control Line
DTR-A
Serial Port A, Data Terminal Ready Control Line
12713020-003-2 Revision F.01 – January 2007
Description
–48V from Power Bus A
–48V Return from Power Bus A
–48V from Power Bus B
–48V Return from Power Bus B
Logic Ground, Return for Non-Isolated Signals
Frame Ground Safety Ground for Shelf
describes the signal names, definitions, and pinouts of
Description
Chapter 7 Connector Pinouts
Signal Names and Definitions
Connector–Pin
J4-1
J4-6
J4-2
J4-7
J4-3
J4-8
J4-4
SSU-2000 Technical Reference 337

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