Card Type	T1 CSU/DSU
Chip Set	Unidentified
I/O Options	AC power connector, 15-pin connector (X.21), 9-pin serial ports (2 RS-232), T1 network interface (RJ-48)
Wiring Type	RJ-48 100ohm shielded twisted pair
T1 Transfer Rate	1.544Mbps
T1 Protocol	AMI, B8ZS, B7ZS
Frame Type	ESF
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
AC power connector	CN1	Network port via RJ-48 connector	CN4
DTE serial port 1	CN2	DCE serial port 2	CN5
15-pin data port	CN3	Power switch	SW2

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Watchdog timer enabled	JP6	Pins 1 & 2 closed
	Watchdog timer disabled	JP6	Pins 2 & 3 closed
»	Signal ground is connected to the frame ground	JP16	Pins 2 & 3 closed
	Signal ground is not connected to the frame ground	JP16	Pins 1 & 2 closed
	User password enabled	S1/1	Off
»	Default password enabled. Password=AMCD	S1/1	On
»	Loads user-selected parameters from NVRAM on power-up	S1/2	Off
	Loads default parameters stored in its EPROM on power-up	S1/2	On
»	Factory configured - do not alter	S1/3	Off
»	Factory configured - do not alter	S1/4	Off

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
TD	Unidentified	On	DSU/CSU is transmitting data
TD	Unidentified	Off	DSU/CSU is not transmitting data
RD	Unidentified	On	DSU/CSU is receiving pulses from network
RD	Unidentified	Off	DSU/CSU is not receiving pulses from network
RED	Unidentified	On	DSU/CSU is detecting a red alarm condition on T1 network
RED	Unidentified	Off	DSU/CSU is not detecting a red alarm condition on T1 network
YEL	Unidentified	On	DSU/CSU is detecting a yellow alarm condition on T1 network
YEL	Unidentified	Off	DSU/CSU is not detecting a yellow alarm condition on T1 network
ALM	Unidentified	On	Alarms are being stored in alarm buffer
ALM	Unidentified	Off	No alarms are in alarm buffer
TST	Unidentified	On	Loopback test active
TST	Unidentified	Off	Loopback test not running