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DTI-48 REV. 2.4

NATURAL MICROSYSTEMS CORPORATION

DTI-48 REV. 2.4

Card Type

T1 DSU

Chip Set

TI TMS320C51

Processor Type

80376 (exact location is unidentified)

Processor Speed

Unidentified

I/O options

MVIP bus

Maximum Data Rate

1.544Mbps x 2, 64Kbps x 48

Data Bus

16-bit ISA

Data Modulation Protocol

B8ZS

CONNECTIONS

Function

Label

Function

Label

Line 1 out

J1

Audio handset

J3

Line 2 out

J2

MVIP bus

J4

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Factory configured - do not alter

SW2/8

Off

Factory configured - do not alter

SW3/8

Off

Factory configured - do not alter

P1/E

Open

Factory configured - do not alter

P1/F

Open

Factory configured - do not alter

P3

Open

Factory configured - do not alter

P5

Open

BASE I/O ADDRESS

Setting

S4/1

S4/2

S4/3

S4/4

 

200h

On

On

On

Off

300h

On

On

On

On

 

2200h

On

On

Off

Off

 

2300h

On

On

Off

On

 

4200h

On

Off

On

Off

 

4300h

On

Off

On

On

 

6200h

On

Off

Off

Off

 

6300h

On

Off

Off

On

 

8200h

Off

On

On

Off

 

8300h

Off

On

On

On

 

A200h

Off

On

Off

Off

 

A300h

Off

On

Off

On

 

C200h

Off

Off

On

Off

 

C300h

Off

Off

On

On

 

E200h

Off

Off

Off

Off

 

E300h

Off

Off

Off

On

CABLE LENGTH - LINE 1

Setting

S2/1

S2/2

S2/3

S2/4

S2/5

S2/6

S2/7

0-150

On

Off

Off

Off

Off

Off

Off

150-450

Off

On

Off

On

Off

On

Off

450-655

Off

Off

On

Off

On

Off

On

CABLE LENGTH - LINE 2

Setting

S3/1

S3/2

S3/3

S3/4

S3/5

S3/6

S3/7

0-150

On

Off

Off

Off

Off

Off

Off

150-450

Off

On

Off

On

Off

On

Off

450-655

Off

Off

On

Off

On

Off

On

T1 DIRECTION - LINE 1

Setting

P8

Normal

Pins 1 & 2, 3 & 4 closed

 

Reversed

Pins 1 & 3, 2 & 4 closed

T1 DIRECTION - LINE 2

Setting

P10

Normal

Pins 1 & 2, 3 & 4 closed

 

Reversed

Pins 1 & 3, 2 & 4 closed

MVIP BUS TERMINATION

Setting

P1/A

P1/B

P1/C

P1/D

Terminated

Closed

Closed

Closed

Closed

 

Not terminated

Open

Open

Open

Open