SWITCHERS
OPERATION | 7 |
7.1 RS-232 CONTROL
The MX2216RM Switcher uses a female
IBM PIN No. | MX2216RM PIN No. |
2 | 2 |
3 | 3 |
5 | 5 |
Connection of
PIN No.
1
2
3
4
5
6
7
8
9
Figure 1
PIN Designation
No connection
No connection
Ground
Multiple Switcher Loop Control
Analog Switch Voltage Input
+5 V (150 mA max)
Analog Voltage Output
Port setting preferences for the control system or computer used to control the switcher should be set as follows:
BAUD RATE (Bits per second) | 2400 |
Data bits | 8 |
Parity | None |
Stop Bits | 1 |
There is no software or hardware flow control implemented. The
7.2 RS-232 PROTOCOL
It is generally recommended to select a single method of control for each application, as the activation of several different controls simultaneously may cause unpredictable results.
The majority of control systems and computers used in presentation system applications use the
To connect the MX2216RM Switcher to a control system or computer for
The are following are typical cable wiring pin outs:
IBM PIN No. | MX2216RM PIN No. |
3 | 2 |
2 | 3 |
7 | 5 |
Connection of
[INP0] | All channels OFF |
[INP1] | Select Input 1 |
[INP2] | Select Input 2 |
[INP3] | Select Input 3 |
[INP4] | Select Input 4 |
[INP5] | Select Input 5 |
[INP6] | Select Input 6 |
[RSET] | Reset unit to user defaults |
[VERN] | Returns firmware version |
| numbers |
Commands must be issued as shown, in ALL CAPS and with the brackets [ ] included in the command string. After processing a valid command, an [OK] string will be returned.
The [VERN] command will return the corresponding software version being used by the switcher, such as an error string, [ERR] will be returned.
If the control system being used is not setup to wait for the [OK] string, it is important to include a 100 millisecond delay between each command.
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