Dell PowerConnect B-TI24x, Руководство по установке оборудования

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52 Dell PowerConnect B-Series TI24X Hardware Installation Guide
53-1002265-01
Device specifications
A
Power source interruptions
Table 10 shows how the PowerConnect B-Series TI24X protects against power surges and power
drops.
Mean Time between Failure
Table 11 lists the Mean Time between Failure (MTBF) for the PowerConnect B-Series TI24X. The
MTBF is the average estimated time, in hours, before a hardware failure may occur.
Pinouts and signalling
This section lists the pinouts for the DB-9 connector and RJ-45 port jacks.
Serial (Console) port pinouts
The Console port is a standard male DB-9 connector, as shown in Figure 26 .
FIGURE 26
Serial port pin and signalling details
Most PC serial ports also require a cable with a female DB-9 connector. Terminal connections will
vary, requiring either a DB-9 or DB-25 connector, male or female.
Serial cable options between the PowerConnect B-Series TI24X and a PC or terminal are shown in
Figure 27 .
TABLE 10
Device power surge and drop protection
Property Protection Mechanism
Power surge MOV and Spark Gap protection
Power drop The PSU will shut down after AC loss >20ms
Maximum power draw 300 watts
TABLE 11
MTBF for the PowerConnect B-Series TI24X
Configuration or Module Temperature MTBF (hours)
PowerConnect B-Series TI24X (40°C) 104°F 114,572
5
9 6
1
Pin Assignment
DB-9 male
Pin Number Switch Signal
1 Reserved
2 TXD
(output)
3 RXD (input)
4 Reserved
5 GND
6 Reserved
7 CTS
(input)
8 RTS (output)
9 Reserved