G.703 FE1 FRACTIONAL E1 modem/telephone/ISDN Settings and Configuration

Card Type	Fractional Access Unit
NIC Type	E1/T1
Chip Set	Unidentified
I/O Options	25-pin DTE/DCE port, BNC connectors (2), RJ-45 connector
Wiring Type	RJ-45 120ohm shielded twisted pair BNC 75ohm coaxial
Maximum Data Rate	2048Kbps
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
RJ-45 connector	CN1	BNC connector - transmit	TX
25-pin serial connector	CN2	Power switch	SW8
BNC connector - receive	RX

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Unframe mode enabled	SW2/1	Off
	Frame mode enabled	SW2/1	On
»	Normal clock polarity - receive	SW6/3	Off
	Inverted clock polarity - receive	SW6/3	On
»	Normal clock polarity - transmit	SW6/4	Off
	Inverted clock polarity - transmit	SW6/4	On
»	CRC4 disabled	SW6/5	Off
	CRC4 enabled	SW6/5	On
»	CAS/PCM30 mode	SW6/6	Off
	CAS/PCM31 mode	SW6/6	On
»	Unused timeslot - Mark	SW6/7	Off
	Unused timeslot - Pass-through	SW6/7	On
»	DCE data port enabled	SW6/8	Off
	DTE data port enabled	SW6/8	On
Note: When cascading, SW6/7 must be set to on.

LINE IMPEDANCE
Setting		SW1/1	SW1/2	SW1/3	SW1/4	SW1/5
»	75ohm unbalanced network interface	Off	Off	On	On	On
	120ohm balanced network interface	On	On	Off	Off	Off

TIMESLOT SELECTION
Setting	SW2/2	SW2/3	SW2/4	SW2/5	SW2/6	SW2/7	SW2/8
Timeslot 1 active	On	Off	Off	Off	Off	Off	Off
Timeslot 2 active	Off	On	Off	Off	Off	Off	Off
Timeslot 3 active	Off	Off	On	Off	Off	Off	Off
Timeslot 4 active	Off	Off	Off	On	Off	Off	Off
Timeslot 5 active	Off	Off	Off	Off	On	Off	Off
Timeslot 6 active	Off	Off	Off	Off	Off	On	Off
Timeslot 7 active	Off	Off	Off	Off	Off	Off	On
Note: Off position sets timeslots to idle. Cascaded units must not be assigned identical or overlapping timeslots

TIMESLOT SELECTION (CONT.)
Setting	SW3/1	SW3/2	SW3/3	SW3/4	SW3/5	SW3/6	SW3/7	SW3/8
Timeslot 8 active	On	Off	Off	Off	Off	Off	Off	Off
Timeslot 9 active	Off	On	Off	Off	Off	Off	Off	Off
Timeslot 10 active	Off	Off	On	Off	Off	Off	Off	Off
Timeslot 11 active	Off	Off	Off	On	Off	Off	Off	Off
Timeslot 12 active	Off	Off	Off	Off	On	Off	Off	Off
Timeslot 13 active	Off	Off	Off	Off	Off	On	Off	Off
Timeslot 14 active	Off	Off	Off	Off	Off	Off	On	Off
Timeslot 15 active	Off	Off	Off	Off	Off	Off	Off	On
Note: Off position sets timeslots to idle. Cascaded units must not be assigned identical or overlapping timeslots

TIMESLOT SELECTION (CONT.)
Setting	SW4/1	SW4/2	SW4/3	SW4/4	SW4/5	SW4/6	SW4/7	SW4/8
Timeslot 16 active	On	Off	Off	Off	Off	Off	Off	Off
Timeslot 17 active	Off	On	Off	Off	Off	Off	Off	Off
Timeslot 18 active	Off	Off	On	Off	Off	Off	Off	Off
Timeslot 19 active	Off	Off	Off	On	Off	Off	Off	Off
Timeslot 20 active	Off	Off	Off	Off	On	Off	Off	Off
Timeslot 21 active	Off	Off	Off	Off	Off	On	Off	Off
Timeslot 22 active	Off	Off	Off	Off	Off	Off	On	Off
Timeslot 23 active	Off	Off	Off	Off	Off	Off	Off	On
Note: Off position sets timeslots to idle. Cascaded units must not be assigned identical or overlapping timeslots

TIMESLOT SELECTION (CONT.)
Setting	SW5/1	SW5/2	SW5/3	SW5/4	SW5/5	SW5/6	SW5/7	SW5/8
Timeslot 24 active	On	Off	Off	Off	Off	Off	Off	Off
Timeslot 25 active	Off	On	Off	Off	Off	Off	Off	Off
Timeslot 26 active	Off	Off	On	Off	Off	Off	Off	Off
Timeslot 27 active	Off	Off	Off	On	Off	Off	Off	Off
Timeslot 28 active	Off	Off	Off	Off	On	Off	Off	Off
Timeslot 29 active	Off	Off	Off	Off	Off	On	Off	Off
Timeslot 30 active	Off	Off	Off	Off	Off	Off	On	Off
Timeslot 31 active	Off	Off	Off	Off	Off	Off	Off	On
Note: Off position sets timeslots to idle. Cascaded units must not be assigned identical or overlapping timeslots

TIMING SOURCE
Setting		SW6/1	SW6/2
»	Receive - recovery/transmit - data port	Off	Off
	Receive/transmit - data port	Off	On
	Receive/transmit - recovery	On	Off
	Receive/transmit - internal oscillator	On	On
Note: Default setting cannot be used if SW6/7 is set to on.

TEST MODE
Setting	Label	Position
C703 loopback test enabled	SW7	1
Normal mode enabled	SW7	2
Dataport loopback test enabled	SW7	3

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
DTE	Green	On	DTE mode enabled; power is on
DTE	Green	Off	DTE mode disabled; power is off
DCE	Green	On	DCE mode enabled; power is on
DCE	Green	Off	DCE mode disabled; power is off
TD	Yellow	On	Ones are being transmitted to network
TD	Yellow	Off	Zeros are being transmitted to network
TD	Yellow	Blinking	Ones and zeros are being transmitted to network
RD	Yellow	On	Ones are being received from network
RD	Yellow	Off	Zeros are being received from network
RD	Yellow	Blinking	Ones and zeros are being received from network
TST	Red	On	Access unit is executing a test
TST	Red	Off	Access unit is not executing a test
ALM	Red	On	Alarm condition detected on network
ALM	Red	Off	Alarm condition not detected on network
TXL	Red	On	Transmit clock loss detected
TXL	Red	Off	Transmit clock loss not detected
RXL	Red	On	Receive signal loss detected
RXL	Red	Off	Receive signal loss not detected