Storage/Control I/O Module 1-1
Technical Description
Storage/Control I/O Module
1.0 GENERAL
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 1 is
an illustration of 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.
2.0 SPECIFICATIONS
Part Number:
Contact your Cisco Systems sales representative
Interfaces:
Four EIA/TIA-232 serial ports (master console, remote
maintenance modem, and two SIO host links)
One Ethernet transceiver interface
One Centronics-type parallel interface (system printer)
One SCSI connector (reserved for future use)
Power Requirements:
Maximum
Typical
Hard Disk Drive
+5Vdc
0.4A
0.33A
+12Vdc
1.0A
0.17A
Ethernet
+5Vdc
0.5A
0.5A
+12Vdc
0A
0A
RS232
+5Vdc
0A
0A
+12Vdc
0.1A
0.05A
Total Current
+5Vdc
0.9A
0.85A
+12Vdc
1.1A
0.22A
Total Power
+5Vdc
17.7 Watts
+12Vdc
6.89 Watts
Operating Temperature:
10
°
C to 40
°
C (50
°
F to 104
°
F)
Relative Humidity:
20% to 80% (non-condensing)
Physical Dimensions:
Height:
14.4 inch
Depth:
5.6 inch
Width:
1.6 inch
