Systech Corporation NDS/5000, Руководство по оборудованию

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Connecting Devices to the NDS 14
RJ-45 to DB-25 or DB-9 adapters may be used with RJ-45 cables to create the cable
configurations shown in Figure 2-2 through Figure 2-6. In most cases, you use “straight
through” RJ-45 cables. If you use “crossover” RJ-45 cables, the RJ-45 pins will be reversed.
Figure 2-7 and Figure 2-8 illustrate the difference between the two types, when constructed
with flat 8-conductor wire.
pin 1
Figure 2-7: RJ-45 to RJ-45 Straight-through Cable
pin 1
Figure 2-8: RJ-45 to RJ-45 Crossover Cable
NDS/6000 RS-232 Operation
The NDS/6000 port server family uses an EIA-232 data terminal equipment (DTE) pinout
on the DB-9 serial ports. Table 2-9 lists the pinouts of the DB-9 ports used for EIA-232 serial
communications.
DB-9
Pin
Number
RS-232
Name
Direction Signal Function
1 DCD I Signals module that remote device has a valid
connection
2 RX I Serial data in, from remote device to NDS
3 TX O Serial data out, from NDS to remote device
4 DTR O Signals remote device that NDS is attached and