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Model PDP Series 200 maxDPU4E Hardware Guide

Serial Ports

The DPU front chassis panel contains two serial ports, a female 9-pin D style

RS232C connector and a female 25-pin D-type connector. The 9-pin

RS232C connector is used to flash the DPU firmware with updates. The

25-pin D-type connector may be configured, by software, to support several

different interface standards.

Table 2-1 provides the pin-outs for the 9-pin port. The pinouts of the 25-pin

port depends upon its usage.

Table 2-1. 9-pin Serial Port Pin-outs

Pin No. Purpose

1 N.C. (N.C. = no connection)

2 RxD

3 TxD

4 N.C.

5 Circuit Ground

6 N.C.

7 RTS

8 CTS

9 N.C.

Backup Link

A 100Mbps Ethernet link is used to pass database information between an

active DPU and an inactive standby DPU. A custom category 5 cable (part

number 089424) connects the DPU backup pair together via the backup

link’s RJ-45 connector. Secondary DPUs will typically be installed in the

lower chassis just below the primary DPUs. To provide unobstructed access

to the key and mode switches, the backup cable should be dressed behind the

termination chassis in the wire tray.

Metso Automation MAX Controls Inc. • 278590 •

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Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Specifiche Pagina 16