Card Type	CSU/DSU
NIC Type	DDS
Chip Set	Unidentified
I/O Options	AC power connector, 25-pin connector, network interface via RJ-48 connector
Wiring Type	RJ-48 120ohm shielded twisted pair
Maximum Data Rate	56Kbps
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
AC power connector	CN1	Network interface via RJ-48 connector	CN3
DTE/DCE serial port (25-pin connector)	CN2	Unidentified	J2C

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Signal ground is connected to the frame ground	JP1	Pins 2 & 3 closed
	Signal ground is not connected to the frame ground	JP1	Pins 1 & 2 closed
	CTS forced high; RTS is ignored	SW2/4	On
	CTS follows RTS	SW2/4	Off

DTE INTERFACE
Function		J1A, J1B	J2A, J2B	J3A, J3B
»	V.35 interface	Board connected	Open	Open
	RS-422 interface	Open	Board connected	Open
	RS-232 interface	Open	Open	Board connected

DATA RATE
Setting	SW2/1	SW2/2	SW2/3
2400bps	On	On	On
4800bps	Off	On	On
9600bps	On	Off	On
19.2Kbps	Off	Off	On
56.0Kbps	On	On	Off

TEST SELECTOR
Function	Label	Position
Digital loopback initiated	SW1	1
Normal operation. Loopback not activated	SW1	2
Activates local analog loopback	SW1	3

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Green	On	Power is on
PWR	Green	Off	Power is off
RTS	Yellow	On	RTS signal is high
RTS	Yellow	Off	RTS signal is low
CTS	Yellow	On	CTS signal is high
CTS	Yellow	Off	CTS signal is low
DCD	Yellow	On	DCD signal is high
DCD	Yellow	Off	DCD signal is low
TD	Yellow	On	Data is being transmitted by local DTE
TD	Yellow	Off	Data is not being transmitted by local DTE
RD	Yellow	On	Data is being received from remote DTE
RD	Yellow	Off	Data is not being received from remote DTE
ALM	Red	On	OOS or OOF alarm condition detected on network
ALM	Red	Off	OOS or OOF alarm condition not detected on network
TST	Red	On	Device is conducting a test
TST	Red	Off	Device is not conducting a test