TASCAM HD-R1 RS-232C Protocol Specifications

1.Overview

You can control the HD-R1 from a computer or other external device using its RS-232C port. In this document, the HD-R1 is the controlled device, and the external device that controls it is the control device.

2.Specifications Electrical specifications

Applicable standard

JIS X-5101 (equivalent to old JIS C-6361 and EIA RS-232C)

 

(Not compatible with RS-422A in commercial use VCRs and other equipment)

Receiver impedance

3 KΩ or more measured at applied voltage of ±3 – ±25 V

Sender open circuit voltage

±25 V or less

 

Receiver open circuit voltage

±3.3 or less

 

Signal discrimination

Logic “1”

+2 V or more

 

Logic “0”

+0.8 V or more

Transmission specifications

 

 

Circuit format

Three-wire, half duplex

Transmission format

Digital binary serial transmission

Data signal speed

9600 bit/sec

 

Character length

8 bits

 

Parity bit

None

 

Stop bit

1 bit

 

Note: The settings are fixed for the data signal speed, character length, parity bit and stop bit. The control device must be adjusted to match the HD-R1 settings.

Pin configuration

 

Connector

D-sub 9-pin female (inch screw thread)

Port pin allocations and input and output signals

Pin

In/Out

Signal

Description

number

 

 

 

1

-

NC

Not used

2

In

Rx Data

Receive data*

3

Out

Tx Data

Send data

4

-

NC

Not used

5

-

GND

Ground

6

-

NC

Not used

7

-

NC

Not used

8

-

NC

Not used

9

-

NC

Not used

*Raise the voltage of Rx Data to comply with the RS-232C standard.

2

TEAC Corporation