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Replacing a GRP
Connecting to the Console Port
The system console port on the GRP is a DCE DB-25 receptacle for connecting a data terminal, which
you must configure. The console port is labeled Console, as shown in
console port, check your terminal's documentation to determine the baud rate of the terminal you plan
to use. The baud rate of the terminal must match the default baud rate (9600 baud). Set up the terminal
as follows: 9600 baud, 8 data bits, no parity, and 2 stop bits (9600, 8N2). The console port requires a
straight-through EIA/TIA-232 cable. Use the console cable provided to connect the terminal to the
console port on the GRP.
Figure 5
The console and auxiliary ports are both asynchronous serial ports; any devices connected to these
Note
ports must be capable of asynchronous transmission. (Asynchronous is the most common type of
serial device; for example, most modems are asynchronous devices.)
The console port on the GRP is an EIA/TIA-232, DCE DB-25 receptacle. Both Data Set Ready (DSR)
and Data Carrier Detect (DCD) signals are active when the system is running. The console port does not
support modem control or hardware flow control.
Table 2
Console Port Pin
1
2
3
6
7
8
Connecting to the Console Port
18
Console and Auxiliary Port Connections
Modem
Console terminal
Console Port Pinout
Signal
GND
TxD
RxD
DSR
GND
DCD
DB-25 female
DB-25 male
Table 2
Direction
Description
—
Signal Ground
<—
Transmit Data (from DTE)
—>
Receive Data (to DTE)
—>
Data Set Ready (always on)
—
Signal Ground
—>
Data Carrier Detect (always on)
Figure
5. Before connecting the
Auxiliary
port
Console
port
GRP
lists the pinout for this port.
78-4339-09
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