Cisco Systems VCO/4K Manual De Usuario

You can position the jumpers in locations JP13 and JP18 (under the “To Terminal” etching) to configure
the CPU as a DCE termination. Moving the jumpers to these locations supports the following SIO
connections:

Straight-through cables connecting the system to a host terminal (DCE to DTE)

Crossover (null modem) cables connecting the system to a modem (DCE to DCE)

Refer to the Cisco VCO/4K Hardware Installation Guide for more information on serial cable
requirements.

When modifying jumper positions on Storage/Control I/O Module boards, you must move
all seven jumpers to the new location to ensure operation.

Serial ports 1 through 4 can be configured as a modem (DCE) for connection to a terminal, or terminal
(DTE) for connection to a modem. The Storage/Control I/O Module card’s serial ports are configured
for shipment in the DCE configuration. Table 4-4 illustrates jumper positions for DCE and DTE.

Seven jumpers are installed at jumper locations JP1, JP11, JP13, JP14, JP16, JP17, JP18 and JP19,
connecting pins 1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14 as shown in Figure 4-9.

1

Jumper –TO MODEM JP11

Jumper—JP1 TO TERMINAL

2

Jumper – TO MODEM JP17

Jumper—JP16 TO TERMINAL

3

Jumper – TO MODEM JP14

Jumper—JP13 TO TERMINAL

4

Jumper – TO MODEM JP19

Jumper—JP18 TO TERMINAL

Hard disk drive

TO MODEM

JP19

TO MODEM

JP17

TO MODEM

JP11

TO MODEM

JP14

TO TERMINAL

JP18

PORT 4

JP16

JP13

JP1

TO TERMINAL

TO TERMINAL

TO TERMINAL

PORT 2

PORT 3

PORT 1

JP15

J21

J20

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