Card Type	T1 DSU/CSU
Chip Set	Unidentified
I/O Options	Power, network interface via RJ-48 connector, line in, line out V.35 DCE interface (34-pin connector), RS-232 or RS422/530 DCE interface (25-pin connector)
T1 Transfer Rate	1.544Mbps
T1 Protocol	AMI, B8ZS
Frame type	D4, ESF
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
T1 network interface (RJ-48)	CN1	25-pin DCE connector	CN4
RJ-11 line in	CN2	34-pin DCE connector	CN5
RJ-11 line out	CN3	Power connector	CN6

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Factory configured - do not alter	SW1/4	Off
»	Factory configured - do not alter	SW1/5	Off
»	Channel remote loops enabled	SW1/8	Off
	Channel remote loops disabled	SW1/8	On
»	ESF T1 network framing enabled	SW2/1	Off
	D4 T1 network framing enabled	SW2/1	On
»	B8ZS T1 line code enabled	SW2/2	Off
	AMI T1 line code enabled	SW2/2	On
»	Clear channel enabled	SW2/3	On
	Enforce line density	SW2/3	Off
»	AT&T 54016 compatibility enabled	SW2/4	Off
	ANSI T1.403 compatibility enabled	SW2/4	On
»	Factory configured - do not alter	SW4/1	Off
»	56Kbps bandwidth	SW4/4	Off
	64Kbps bandwidth	SW4/4	On
»	Carrier on	SW4/5	Off
	Switched carrier	SW4/5	On
»	Channel TX data is normal	SW4/6	Off
	Channel TX data is inverted	SW4/6	On
»	Channel clock signal is normal	SW4/7	Off
	Channel clock signal is inverted	SW4/7	On
»	Internal TX timing source enabled	SW4/8	Off
	Network TX timing source enabled	SW4/8	On

UNIT ADDRESS
Unit Address Number		SW1/1	SW1/2	SW1/3
»	1	Off	Off	Off
	2	On	Off	Off
	3	Off	On	Off
	4	On	On	Off
	5	Off	Off	On
	6	On	Off	On
	7	Off	On	On
	8	On	On	On

PROGRAMMING METHOD
Setting		S1/6	SW/7
»	Switches enabled	Off	Off
	Console enabled	On	Off
	SNMP activated	Off	On

LINE BUILD
Net build		SW2/5	SW2/6
»	0dB	Off	Off
	-7.5dB	On	On
	-15dB	On	Off
	-22.5dB	Off	On

TIMING MODE
Setting		SW2/7	SW2/8
»	Network timing enabled	Off	Off
	Internal timing enabled	Off	On
	DSX-1 timing enabled	On	Off
	Channel timing enabled	On	On

SYCHRONOUS CHANNEL INTERFACE
Interface		SW4/2	SW4/3
»	RS-530/RS-422	Off	Off
	V.35	Off	On
	RS-232	On	Off

DIAGNOSTIC LEDS
LED	Color	Status	Condition
TX1	Green	On	CSU/DSU is spacing on transmit data to DTE
TX1	Green	Off	CSU/DSU is spacing on transmit data to DTE
RX1	Green	On	CSU/DSU is spacing on receive data from DTE
RX1	Green	Off	CSU/DSU is spacing on receive data from DTE
RTS	Green	On	Sending device is enabled
RTS	Green	Off	Sending device is disabled
CTS	Green	On	CSU/DSU is ready to send data
CTS	Green	Off	CSU/DSU is not ready to send data
DSR	Green	On	CSU/DSU ready for operation
DSR	Green	Off	CSU/DSU not ready for operation
CD	Green	On	Carrier signal detected
CD	Green	Off	Carrier signal not detected
DTR	Green	On	Terminal/computer ready for operation
DTR	Green	Off	Terminal/computer not ready for operation
BPV	Red	On	Bi-polar violation detected on network
BPV	Red	Off	Bi-polar violation not detected on network
DEN	Red	On	Insufficient number of ones detected in data stream
DEN	Red	Off	Ones density normal
YEL	Red	On	Yellow alarm condition detected on network
YEL	Red	Off	Yellow alarm condition not detected on network
LCK	Green	On	CSU/DSU is frame locked to network
LCK	Red	On	CSU/DSU is out of frame, or not frame locked

DIAGNOSTIC LEDS (CONT.)
LED	Color	Status	Condition
TX2	Green	On	CSU/DSU is spacing on network transmit data
TX2	Green	Off	CSU/DSU is spacing on network transmit data
RX2	Green	On	CSU/DSU is spacing on network receive data
RX2	Green	Off	CSU/DSU is spacing on network receive data
NI1	Red	On	Loopback test activated by SELECT pushbutton
NI1	Red	Blinking (fast)	Locally activated circled network loopback in progress
NI1	Red	Blinking (slow)	Carrier or remote activated circled network loopback in progress
NI1	Red	Off	Loopback test not activated
CH1	Red	On	Local synchronous channel loopback test activated by SELECT pushbutton
CH1	Red	Blinking (fast)	Synchronous channel interface in a locally activated bidirectional loopback
CH1	Red	Blinking (slow)	Synchronous channel interface in a carrier or remote activated bidirectional loopback
CH1	Red	Off	Local synchronous channel loopback test not activated
PAY	Red	On	Payload loopback test activated by SELECT pushbutton
PAY	Red	Blinking (fast)	Payload loopback test activated locally
PAY	Red	Blinking (slow)	Payload loopback test activated by T1 carrier or remote
PAY	Red	Off	Payload loopback test not activated
NI2	Red	On	Remote loopback test activated by SELECT pushbutton
NI2	Red	Blinking (fast)	Remote loopback command sent from CSU/DSU at one end of network to CSU/DSU at the other end. When test is completed, send LOOP DOWN command.
NI2	Red	Off	Remote loopback command not activated
CH2	Red	Blinking (fast)	Synchronous channel interface loopback command sent from CSU/DSU at one end of network to CSU/DSU at the other end. When test is completed, send LOOP OFF command.
CH2	Red	Off	Remote synchronous channel loopback not activated
PAT	Red	On	Test pattern activated by SELECT pushbutton
PAT	Red	Blinking (fast)	2047 test pattern sent by START pushbutton
PAT	Green	On	2047 test pattern detected on network
PAT	N/A	Off	Test pattern not activated