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G.703 FE1 FRACTIONAL E1

CTC UNION TECHNOLOGIES CO., LTD

G.703 FE1 FRACTIONAL E1

G.703 FRACTIONAL T1

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