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2450

PATTON ELECTRONICS COMPANY

2450

Card Type

CSU/DSU

Chip Set

Unidentified

I/O Options

Power, DTE/DCE serial port, network interface via RJ-48 connector

Maximum Data Rate

64Kbps

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

Power connector

CN1

Network interface via RJ-48 connector

CN3

DTE/DCE port (quick connect module)

CN2

   

Note: Quick connect serial interface module can be configured as a V.24/RS-232, V.35, RS422/530, or X.21 port.

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Circuit assurance disabled. Transmitter and CTS will operate independent of receiver state

S1/3

Off

 

Circuit assurance enabled. CTS will go low and the transmitter will be held off if the receiver is in the No signal state or CD is low

S1/3

On

RTS forced high

S1/4

On

 

RTS follows DTE signal

S1/4

Off

56Kbps mode

S1/5

Off

 

64Kbps mode

S1/5

On

Front panel switches enabled

S1/6

Off

 

Front panel switches disabled

S1/6

On

Modem ignores loopback requests from DTE

S1/7

On

 

Modem responds to local analog loopback requests from DTE

S1/7

Off

Modem ignores loopback requests from remote

S1/8

On

 

Modem responds to loopback requests from remote

S1/8

Off

TRANSMIT CLOCK SOURCE

Source

S1/1

S1/2

Transmit clock derived from receive line signal. Dedicated DDS operation

Off

On

 

Transmit clock derived from receive line signal. Allows remote device to initiate loopback.

On

On

 

Transmit clock generated internally

Off

Off

 

Transmit clock derived from terminal interface

On

Off

LOOPBACK TEST SELECTOR

Function

Label

Position

Remote digital loopback initiated

SW4

1

Normal operation. Loopback not activated

SW4

2

Activates local analog loopback

SW4

3

TEST PATTERN GENERATOR

Function

Label

Position

511/E test pattern transmitted (intentional errors inserted)

SW5

1

Normal operation. Test pattern not activated

SW5

2

511 test pattern transmitted

SW5

3

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

TD

Red

On

Data is being transmitted (low logic level, device idle)

TD

Green

On

Data is being transmitted (high logic level)

TD

None

Off

Data is not being transmitted

RD

Red

On

Data is being received (low logic level, device idle)

RD

Green

On

Data is being received (high logic level)

RD

None

Off

Data is not being received

CD

Green

On

Carrier signal detected

CD

Red

On

Carrier signal not detected

NS

Red

On

No valid carrier

NS

Red

Off

Valid signal detected from remote modem or digital service provider

ER

Red

On

Bit error likely in received signal or error detected in the test pattern

ER

Red

Off

Error not detected

TM

Red

On

Device has been placed in test mode by local or remote user

TM

Red

Off

Device is not conducting a test