ALPHA TELECOM, INC.

UT620F

Card Type

ISDN NT1

Chip Set

Unidentified

I/O Options

Power, Terminal S/T interface via RJ-45 (2),Network U interface via RJ-45

T1 Transfer Rate

1.44Mbps

Frame Type

AMI, 2B1Q

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

ISDN U interface (RJ-45)

CN1

ISDN S/T interface (RJ-45)

CN3

ISDN S/T interface (RJ-45)

CN2

Power

CN4

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Extended passive bus

SW3

Off

 

Short passive bus

SW3

On

 

Local power supply set to AD62010

SW4

On

 

Local power supply set to SP62029

SW4

Off

S/T TERMINATION SELECTION

Setting

SW1/1

SW1/2

JP3

JP4

»

100Ohm resistance enabled

On

On

Open

Open

 

50Ohm resistance enabled

On

On

Closed

Closed

 

Resistance disabled

Off

Off

N/A

N/A

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

S/T&U

Red

On

U interface inactive

S/T&U

Red

Blinking (fast)

U interface connection is being established

S/T&U

Red

Blinking (slow)

U interface active; S/T interface inactive

S/T&U

Red

Off

U & S/T interface active

ULBK

Yellow

On

Central office is conducting a loopback test on device

ULBK

Yellow

Off

Central office is not conducting a loopback test on device