Card Type	T1 DSU
Chip Set	Unidentified
I/O Options	AC power connector, 9-pin serial ports (2), V.35 data port T1 network interface via 15-pin connector
T1 Transfer Rate	1.544Mbps
T1 Line Coding	AMI, B8ZS
Frame type	ESF, SF
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
DCE serial port	CN1	V.35 data port	CN4
T1 network port (15-pin connector)	CN2	AC power connector	CN5
DTE serial port	CN3

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Green	On	Power is on
PWR	Red	On	Equipment failure occurred during self test
PWR	Green	Blinking	User is logged in
PWR	Red/Green	Blinking	Software is being loaded
PWR	Red	Blinking	Unit is conducting a test
PWR	N/A	Off	Power is off
T1	Red	On	LOS, OOF, AIS or yellow alarm condition detected
T1	Red	Off	LOS, OOF, AIS or yellow alarm condition not detected
TD	Yellow	On	Data is being transmitted from the data port (CN5)
TD	Yellow	Off	Data is not being transmitted from the data port (CN5). Indicative of all zero condition if RTS and CTS are high.
RD	Yellow	On	Data is being received at the data port (CN5)
RD	Yellow	Off	Data is not being recieved at the data port (CN5). Indicative of all zero condition if RTS and CTS are high.
CTS	Yellow	On	CTS signal is high. Unit ready to send data
CTS	Yellow	Off	CTS signal is low
RTS	Yellow	On	RTS signal is high
RTS	Yellow	Off	RTS signal is low