Dell Metered PDU LCD - Manual (Page 28)

28 |
External Signaling Ports
Serial Port
The serial port provides RS-232 serial communication between the rPDUs and a computer using an RJ-45 to
DB-9 serial cable (supplied). Use the serial port to connect to a PC and perform the following using a CLI:
S
Configure the internal NMC at startup
S Upgrade the internal NMC and rPDU firmware using a flash update utility program
S
Connect to a Dell KVM that supports rPDU communication
To create a serial connection between the rPDU and a PC:
1 Locate the RJ-45 to DB-9 serial cable provided in the accessory bag.
2 Connect the RJ-45 serial cable connector to the rPDU serial communication port (see Figure 18).
3 Connect the serial cable console connector to the RS-232 serial connection port (COM port) on the PC.
NOTE: Use HyperTerminal ® or an equivalent terminal emulation application for the CLI.
The cable pins for the RS-232 serial connection (DB-9 female connector) are identified in Figure 19.
3
8 7 9
1
6
2 4 5
Figure 19. DB-9 Female Connector
Table 2 provides RS-232 serial connector port pin assignments.
Table 2. Serial Communication RS-232 Port Pin Assignment
Pin Signal Name Function Direction from the rPDU
1 Unused —
2 RXD Receive Data In
3 TXD Transmit Data Out
4 Unused —
5 GND Ground —
6 Unused —
7 Unused —
8 Unused —
9 Unused —
NOTE: Unused pins must be left free on all models. The pins labeled “Unused” are not to be pulled high or tied to ground.