Installation guide

Description of Hardware
4
External DIP Switch Settings
The CPE has a four-bit DIP switch located on its rear panel next to the UTP port
(see figure below). The DIP switch allows you to enable/disable auto-negotiation for
the UTP port and manually force the speed and duplex mode setting. Also, there is
one switch for setting the UTP port to MDI or MDI-X wiring. The ON position for the
DIP switch is down.
The following table lists the DIP-switch settings:
Note: Auto-negotiation must be disabled, i.e., switch Auto (bit 4) set to OFF, for switches
Full (bit 3),100 (bit 2) and MDI-X (bit 1) to be functional.
DIP SW Bit Name Description
1 MDI-X ON: Port wired as MDI-X. (Only functional when Auto is OFF).
OFF: Port wired as MDI.
2 100 ON: Port operating as 100BASE-TX. (Only applies if Auto is OFF.)
OFF: Port operating as 10BASE-T.
3 Full ON: Full-duplex mode. (Only applies if Auto is OFF.)
OFF: Half-duplex mode.
4 Auto ON: Auto-negotiation enabled.
OFF: Auto-negotiation disabled. (Force setting using bits 1-3.)
Optical IN/OUT
Auto
MDI-X
100
Full
UTP
DC IN 12V
ON
DIP Switch
DIP Switch On Position