Black Box ME260A, Owner'S Manual

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25
CHAPTER 2: Introduction
Figure 2-13 shows the flow of the clock signals in this mode, as well as the flow
of interface control signals.
Figure 2-13. Modem-eliminator application (showing the flow of clock
and interface-control signals in the EXT timing mode).
Internal Clock
J1 J2
DCE Mode
DCE Mode
DTE
DTE
External Clock
TTC
TC
TD
RTS
RC
RD
DCD
DSR
DTR
CTS
FG
SG
RC
RD
DCD
TC
TD
RTS
DTR
DSR
CTS
PG
SG