CONNECTING MORE THAN FOUR USERS

5

After you have finished configuring your Dual 56K LAN Modem, you can connect an additional Ethernet hub or hubs to the Dual 56K LAN Modem to add up to 25 users. An example of a ten-user connection is shown.

To connect an additional hub:

1

Insert one end of a 10BASE-T Ethernet cable

 

(not included) into any available port on the back

 

of the Dual 56K LAN Modem.

2

Insert the opposite end of the cable into one of

 

the 10BASE-T Ethernet ports on the Ethernet

 

hub. (If you are connecting to an OfficeConnect

 

Ethernet Hub 8, insert the cable into port 8.)

 

 

8 V

DC

 

0-1

 

X

1

 

MA

 

 

8A

 

 

 

 

 

2

5

 

6

 

7

 

8

MDI/MDIX

 

 

2

1

4

 

3

LAN

1

OfficeConnect

Ethernet Hub 8

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

2

 

 

 

 

 

 

3

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

OfficeConnect

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dual 56K LAN Modem

 

 

 

 

 

 

 

PH

ON

E 2

 

 

 

 

 

 

E 2

 

 

 

 

 

 

 

 

 

 

 

 

 

E 1

LIN

 

 

 

 

 

 

ON

 

 

 

 

 

 

PH

 

 

 

 

 

 

E 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

If you are connecting to an OfficeConnect

 

Ethernet Hub 8, set the MDI/MDIX switch to

 

MDI (that is, pressed in).

4

Connect additional workstations to any

 

available port.

 

If the hub to which you are connecting does not

 

have an MDI/MDIX switch, you will need a

 

cross-over Ethernet cable.

 

 

RESET

Ethernet cable

 

-30

VDC

 

10

MAX

 

0.8A

 

 

3

STACKING OFFICECONNECT UNITS

Use the rubber feet for desktop use. The four self-adhesive rubber feet prevent your Dual 56K LAN Modem from sliding. Attach the feet to the underside of the LAN Modem in the marked corners.

Use the Stacking Clip to stack two or more OfficeConnect units together securely.

CAUTION: You can stack up to a maximum of four units. Smaller units must be stacked on top of larger units.

To stack two units:

1Place the first unit on a flat surface.

2Fit the clip across the top of the unit, as shown. The longer end of the fastening pieces should point downward.

3Align the fastening pieces over the slots on each side of the unit, and then push the clip down gently to secure it. Ensure that the fastening pieces snap into the slots.

4Rest the second unit on top of the clip, and align it with the front of the bottom unit.

5Press down gently to secure the top unit onto the clip, ensuring that the fastening pieces fit into the slots, as shown.

To unstack units, gently pry the top unit away from the clip, and then carefully pull each fastening piece out of its slot to detach the clip from the bottom unit.

2

 

 

Fastening

 

piece

MODEM 1

 

MODEM 2

 

LAN

Status

 

OfficeConnectDual

 

56kLAN

 

Modem

5

 

 

Fastening

 

piece

Page 5
Image 5
3Com 3C888 manual Connecting More than Four Users, Stacking Officeconnect Units, To connect an additional hub

3C888 specifications

The 3Com 3C888 is a versatile networking device that was part of the company's innovative range of network interface cards (NICs) aimed at enhancing computer connectivity. These devices were integral to the evolution of networking in both consumer and enterprise environments during the late 1990s and early 2000s.

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