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G.703 FE1-A (CASCADE FRACTIONAL E1/E1)

CTC UNION TECHNOLOGIES CO., LTD.

G.703 FE1-A (CASCADE FRACTIONAL E1/E1)

Card Type

E1 DSU

Chip Set

Unidentified

I/O Options

E1 network interface via BNC-T connectors (2),

25-pin DTE/DCE port, G.703 interface via RJ-45 connector

Wiring Type

RG-58A/U cable

E1 Transfer Rate

2.048Mbps

E1 Line Coding

HDB3

Frame type

G.703

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

25-pin data port

CN1

RG-58A/U connector - receive (BNC-T)

CN4

RG-58A/U connector - transmit (BNC-T)

CN2

Power switch

SW8

G.703 interface(RJ-45)

CN3

   

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Framed mode (2048Kbps)

SW2/1

On

Unframed mode(64Kbps x n )

SW2/1

Off

Time slot 1 enabled

SW2/2

On

Time slot 1 disabled

SW2/2

Off

Time slot 2 enabled

SW2/3

On

Time slot 2 disabled

SW2/3

Off

Time slot 3 enabled

SW2/4

On

Time slot 3 disabled

SW2/4

Off

Time slot 4 enabled

SW2/5

On

Time slot 4 disabled

SW2/5

Off

Time slot 5 enabled

SW2/6

On

Time slot 5 disabled

SW2/6

Off

Time slot 6 enabled

SW2/7

On

Time slot 6 disabled

SW2/7

Off

Time slot 7 enabled

SW2/8

On

Time slot 7 disabled

SW2/8

Off

USER CONFIGURABLE SETTINGS (CONT.)

Time slot 8 enabled

SW3/1

On

Time slot 8 disabled

SW3/1

Off

Time slot 9 enabled

SW3/2

On

Time slot 9 disabled

SW3/2

Off

Time slot 10 enabled

SW3/3

On

Time slot 10 disabled

SW3/3

Off

Time slot 11 enabled

SW3/4

On

Time slot 11 disabled

SW3/4

Off

Time slot 12 enabled

SW3/5

On

Time slot 12 disabled

SW3/5

Off

Time slot 13 enabled

SW3/6

On

Time slot 13 disabled

SW3/6

Off

Time slot 14 enabled

SW3/7

On

Time slot 14 disabled

SW3/7

Off

Time slot 15 enabled

SW3/8

On

Time slot 15 disabled

SW3/8

Off

Time slot 16 enabled

SW4/1

On

Time slot 16 disabled

SW4/1

Off

Time slot 17 enabled

SW4/2

On

Time slot 17 disabled

SW4/2

Off

Time slot 18 enabled

SW4/3

On

Time slot 18 disabled

SW4/3

Off

Time slot 19 enabled

SW4/4

On

Time slot 19 disabled

SW4/4

Off

Time slot 20 enabled

SW4/5

On

Time slot 20 disabled

SW4/5

Off

Time slot 21 enabled

SW4/6

On

Time slot 21 disabled

SW4/6

Off

Time slot 22 enabled

SW4/7

On

Time slot 22 disabled

SW4/7

Off

Time slot 23 enabled

SW4/8

On

Time slot 23 disabled

SW4/8

Off

Time slot 24 enabled

SW5/1

On

Time slot 24 disabled

SW5/1

Off

Time slot 25 enabled

SW5/2

On

Time slot 25 disabled

SW5/2

Off

Time slot 26 enabled

SW5/3

On

Time slot 26 disabled

SW5/3

Off

Time slot 27 enabled

SW5/4

On

Time slot 27 disabled

SW5/4

Off

Time slot 28 enabled

SW5/5

On

Time slot 28 disabled

SW5/5

Off

Time slot 29 enabled

SW5/6

On

Time slot 29 disabled

SW5/6

Off

Time slot 30 enabled

SW5/7

On

Time slot 30 disabled

SW5/7

Off

Time slot 31 enabled

SW5/8

On

Time slot 31 disabled

SW5/8

Off

USER CONFIGURABLE SETTINGS (CONT.)

Inverted receive clock polarity enabled

SW6/3

On

Normal receive clock polarity enabled

SW6/3

Off

Inverted transmit clock polarity enabled

SW6/4

On

Normal transmit clock polarity enabled

SW6/4

Off

CRC4 enabled

SW6/5

On

CRC4 disabled

SW6/5

Off

CAS/PCM31 mode

SW6/6

On

CAS/PCM30 mode

SW6/6

Off

Unused timslot - PASS THRU

SW6/7

On

Unused timeslot - MARK(FF)

SW6/7

Off

Data port in DTE mode

SW6/8

On

Data port in DCE mode

SW6/8

Off

E1 LINE IMPEDANCE

Setting

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

75 Ohm operation (CE approved)

Off

Off

Off

Off

Off

120 Ohm operation (CE approved)

On

On

On

On

On

75 Ohm operation (older models)

On

On

Off

Off

Off

120 Ohm operation (older models)

Off

Off

On

On

On

RX/TX TIMING

Receive Timing

Transmit Timing

SW6/1

SW6/2

Recover from E1 network port

Source from data port

Off

Off

Source from data port

Source from data port

Off

On

Recover from E1 network port

Source from E1 network port

On

Off

Established by internal oscillator

Established by internal oscillator

On

On

LOOPBACK TEST SELECTOR

Function

Label

Position

Recovery port loopback initiated

SW7

1

Normal operation. Loopback not activated

SW7

2

Data port loopback initiated

SW7

3

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

DTE

Green

On

DTE mode enabled; power is on

DTE

Green

Off

Device not in DTE mode or power is off

DCE

Green

On

DCE mode enabled; power is on

DCE

Green

Off

Device not in DCE mode or power is off

TD

Yellow

On

Data is being transmitted from the data port (CN1)

TD

Yellow

Off

Data is not being transmitted from the data port (CN1)

RD

Yellow

On

Data is being received at the data port (CN1)

RD

Yellow

Off

Data is not being recieved at the data port (CN1)

TST

Red

On

Device is conducting a loopback test

TST

Red

Off

Device is not conducting a loopback test

ALM

Red

On

Alarm condition detected on network

ALM

Red

Off

Alarm condition not detected on network

TXCL

Red

On

Transmit clock loss detected

TXCL

Red

Off

Transmit clock loss not detected

RXSL

Red

On

Receive signal loss detected

RXSL

Red

Off

Receive signal loss not detected

MISCELLANEOUS TECHNICAL NOTES

Timeslot switches are ignored in unframe mode. In framed mode, clock rate is determined by the number of timeslots enabled ( n ). In CAS mode, SW4/1 must be set to off position or a loopback test will occur. When cascading, SW6/7 must be set to on position. Cascading units must not be assigned identical or overlapping timeslots.