Card Type	Network Interface Card
NIC Type	CDDI
Maximum Onboard Memory	128KB
Boot ROM	Unidentified
Network Transfer Rate	100Mbps
Topology	Ring, Peer-Peer
Wiring Type	Unshielded twisted pair
Data Bus	32-bit EISA

CONNECTIONS
Function	Label	Function	Label
UTP via RJ-45 (Phy A)	CN1	6-pin DIN (Optical Bypass Switch)	CN3
UTP via RJ-45 (Phy B)	CN2
Note: Type A (Phy A) or Type B (Phy B) connectors are usually distinguished by a marking on the male UTP (i.e. if using a blue ring to route transmit signals from the 4811, do the same for all other devices). CN1 is keyed for an A type connector, and CN2 is keyed for a B type connector.

DIAGNOSTIC LED(S)
LED1 (Yellow)	LED2 (Yellow)	LED3 (Green)	LED3 (Green)	Condition
Off	Off	Off	On	Power to card
On	Off	Off	On	Power on diagnostics
Off	Off	On	On	Diagnostics passed
Off	Blinking	On	On	CB Running
Off	Off	Blinking	On	RC Running
Off	On	Blinking	On	Ring connection good
On	Off	Off	On	Adapter Failure
Note: Definitions of "CB" and "RC" are unidentified.

CONNECTIONS
Function	Label	Function	Label
UTP via RJ-45 (Phy A)	CN1	UTP via RJ-45 (male) (Phy B)	CN4
UTP via RJ-45 (Phy B)	CN2	6-pin DIN socket (Optical Bypass Switch)	CN5
UTP via RJ-45 (male) (Phy A)	CN3
Note: Type A (Phy A) or Type B (Phy B) connectors are usually distinguished by a marking on the male UTP (i.e. if using a blue ring to route transmit signals from the 4811, do the same for all other devices). CN1 is keyed for an A type connector, and CN2 is keyed for a B type connector.