Black Box SW487A-R2 manual Connecting Multiple Scsi Switches, Rackmount Installation

CHAPTER 5: Configuration and Operation

5.9 Connecting Multiple SCSI Switches

Up to thirty-two SCSI Switches can be controlled by a single RS-232 serial interface. To operate in this configuration, set the serial ports to operate in daisychained mode. In Figure 5-6, “1” is RS-232 port 1 on each switch and “2” is RS-232 port 2.

Computer

	RS-232
1	2	1	2

SCSI Switch	SCSI Switch
Box 1	Box 2

1	2	1
SCSI Switch		SCSI Switch
	Box 3	Box 4

Figure 5-4. Multiple SCSI Switch configuration.

5.10 Rackmount Installation

The 6 x 4 Electronic SCSI Switch can be installed in a standard 19-inch (EIA unit) rack.

5.10.1INSTALLATION PROCEDURE

Attach the two mounting brackets to each side of the SCSI Switch enclosure using the screws provided. Set the unit into position on the rack, aligning the mounting bracket holes with the rack holes. Use 5⁄8" 10-32 or 12-24 screws to install in the rack.

5.10.2RACKMOUNT CONSIDERATIONS

1.For proper operation, make sure that the maximum recommended operating ambient temperature of 149°F (65°C) is not exceeded. Keep in mind that if the unit is installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Install the rack in an environment compatible with the SCSI Switch’s maximum rated operating temperature.

2.Make sure that the amount of airflow around the SCSI Switch that’s required for safe operation is not compromised.

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