RS-232C interface
The VTR can be operated by commands when the
(See command table on pages 71, 72.)
$ Conditions for acknowledging commands from RS-232C interface
O The front panel CONTROL switch must be at
REMOTE.
O The setup menu No. 204 “RS232C SEL” must be ON.
If the above conditions are not met, [ACK] + [STX] ER001 [EXT] is returned to the external unit. Whether the [ACK] code is returned depends on the setting which has been selected for setup menu item No. 209 “RETURN ACK”.
Hardware specifications
External interface specifications
O Connector specifications
Connector:
Pin No. | Signal | Description |
|
|
|
|
|
|
1 | FG | Protective ground |
|
| (Frame ground) |
|
|
|
2 | RXD | Received data |
|
| (Data is sent to PC.) |
|
|
|
3 | TXD | Transmitted data |
|
| (Data is received from PC.) |
|
|
|
4 | CTS | Clear to send |
|
| (Shorted with pin 5.) |
|
|
|
5 | RTS | Request to send |
|
| (Shorted with pin 4.) |
|
|
|
6 | DTR | Data terminal ready |
|
| (No processing) |
|
|
|
7 | SG | Signal ground |
|
| (Signal ground) |
|
|
|
20 | DSR | Data set ready (+ voltage output after |
|
| communication enable status) |
|
|
|
O Example of connection with controller (PC) Using crossover cable with
PC side |
|
|
|
|
VTR side | ||||
|
|
|
|
|
FG | 1 |
| 1 | FG |
TXD | 2 |
| 2 | RXD |
RXD | 3 |
| 3 | TXD |
RTS | 4 |
| 4 | CTS |
CTS | 5 |
| 5 | RTS |
DSR | 6 |
| 6 | DTR |
SG | 7 |
| 7 | SG |
DTR | 20 |
| 20 | DSR |
|
|
|
|
|
Using crossover cable with
PC side |
|
|
|
|
VTR side | ||||
|
|
|
|
|
RXD | 2 |
| 1 | FG |
TXD | 3 |
| 2 | RXD |
DTR | 4 |
| 3 | TXD |
SG | 5 |
| 4 | CTS |
DSR | 6 |
| 5 | RTS |
RTS | 7 |
| 6 | DTR |
CTS | 8 |
| 7 | SG |
|
|
| 20 | DSR |
|
|
|
|
|
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