Memotec CX950

CX950 Hardware Reference Manual
6-4
3021M100-002
Thumbwheel
The connector plate features a thumbwheel that is used in conjunction with the
status-indicator LEDs for port monitoring. Each serial port can be monitored, in
turn, by setting the thumbwheel to the appropriate port number (1-5).
LED DTE DCE LED State Indication
TXD
√ On Link up. Remote DCD active.
√ Off Link down. Remote DCD inactive.
√ On Link up. Remote DTR active.
√ Off Link down. Remote DTR inactive.
RXD
√ On Receiving (RXD) data from the remote unit
√ Off Not receiving data from the remote unit.
√ On Receiving (TXD) data from the remote unit.
√ Off Not receiving data from the remote unit.
DCE
√ On n/a
√ Off This port is set as DTE.
√ On This port is set as DCE.
√ Off n/a
Table 6-1 Universal I/O Card LED Status
Figure 6-3 Universal I/O Card, Connector Plate
TXD
DCE
MON.
SEL.
PORTS
1TO5
VHDCI
connector
UNIVERSAL
SERIAL
I/O
Thumbwheel
RXD