Black Box SW555A Manual do Utilizador descarregar pdf (Página 11)

REMOTE MANAGEMENT SWITCH

3. Installation

3.1 Master and Switched Ports

Connect the Remote Management Switch’s ports A through D found on the rear

of the unit to your RS-232 devices. Each port uses a DB25 subminiature connector

and supports the following leads for asynchronous communications.

Table 3-1. DB25 connector supported leads.

Pin Designation

2 Transmit Data

3 Receive Data

4 Request to Send

5 Clear to Send

6 Data Set Ready

7 Signal Ground

8 Data Carrier Detect

20 Data Terminal Ready

Figure 3-1. System diagram.

Remote

Management

Switch

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 21 22

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Black Box SW555A Manual do Utilizador Página 11