
CX900e Hardware Reference Manual
7-4
3006M100-002
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).
7.2
Universal I/O Cable
The Universal I/O module is equipped with an octopus cable that features a
VHDCI connector on one end and 5 cable legs equipped with RS-232 connectors
on the other end. This allows the Universal I/O module to support 5 interfaces
through a single port. The Universal I/O cable is available for 3 types of
interfaces: V.24, X.21, and V.35. A combination of these interfaces can b
achieved by using the RS-232/V.24 cable, and adding X.21 and/or V.35 interfac
LED
LED State
Indication
TXD
On
Data is being transmitted.
Off
Data is not being transmitted.
RXD
On
Data is being received.
Off
Data is not being received.
DCE
On
This port is set as DCE.
Off
This port is set as DTE.
Table 7-1 Universal I/O Card LED Status
Figure 7-3 Universal I/O Card, Connector Plate
T X D
D C E
M O N .
S E L .
P O R T S
1
T O
5
V H D C I
con nector
U N IV E R S A L
S E R IA L
I/O
T hum bw heel
R X D
Summary of Contents for CX900e
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