Cisco Systems VCO-4K User Manual
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C H A P T E R 4

Storage/Control I/O Module

The Storage/Control I/O Module performs two functions: to connect outside interfaces to the system controller and to house the hard disk drive. It plugs into the back of the VCO/4K system and provides the I/O interfaces for system peripheral devices and host communication links using four serial ports, one Ethernet port, one printer port and one SCSI connector. Figure 4-1 shows the front panel of the Storage/Control I/O Module.

Physical interfaces to host computers and peripheral devices are provided on the front panel of the Storage/Control I/O Module. Two serial ports are available for SIO host links, and another two are dedicated to supporting the local system administration console and a remote maintenance modem. An Ethernet Transceiver interface and parallel printer connector are also located on the Storage/Control I/O Module.

Specifications

 

Part Number

Contact your Cisco Systems sales representative

 

Interfaces

Four EIA/TIA-232serial ports (master console, remote maintenance modem,

 

 

and two SIO host links)

 

 

 

 

 

 

One Ethernet transceiver interface

 

 

One Centronics-typeparallel interface (system printer)

 

 

One SCSI connector (reserved for future use)

 

Power Requirements:

 

Maximum

Typical

 

Hard Disk Drive

+5 VDC

0.4A

0.33A

 

 

+12 VDC

1.0A

0.17A

 

Ethernet

+5 VDC

0.5A

0.5A

 

 

+12 VDC

0A

0A

 

EIA/TIA-232

+5 VDC

0A

0A

 

 

+12 VDC

0.1A

0.05A

 

 

 

 

Cisco VCO/4K Mechanical Assemblies

 

 

 

 

 

 

 

 

 

78-10334-03

 

 

 

 

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