evertz 3025EMC - Table 2-3: RS-422 Pin Outs; Table 2-4: AUX IO 1 GPI;O Logical Connector; Table 2-5: AUX IO 2 GPI;O Logical Connector (Optional)

3025EMC Master Control Switching & Channel Branding
Revision 3.0.3 Page 21
Pin #
Name
Description
1
GND
Chassis ground
2
Tx-
RS-422 Tx-(A)
Output
3
Rx+
RS-422 Rx+(B)
Input
4
GND
5
6
GND
7
Tx+
RS-422 Tx+(B)
Output
8
Rx-
RS-422 Rx-(A)
Input
9
GND
Table 2-3: RS-422 Pin Outs
2.9.5.2. GPI/O Connections
GPI/O: The Breakout panel contains the 34 pin terminal block that allows 8 general-purpose
control inputs and 8 general-purpose outputs. The AUXIO-1 panel provides GPIs 1-8 and
GPOs 1-8 and AUXIO-2 panel provides GPIs 9-16 and GPOs 9-16. In each case the GPI
and GPO number matches the EMC-Setup configuration.
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
GND
GPI
2
GPI
4
GPI
6
GPI
8
GND
n/a
n/a
n/a
n/a
Vext
GND
GPO
2
GPO
4
GND
GPO
6
GPO
8
GND
GPI
1
GPI
3
GPI
5
GPI
7
GND
n/a
n/a
n/a
n/a
Vext
GND
GPO
1
GPO
3
GND
GPO
5
GPO
7
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
Table 2-4: AUX IO 1 GPI/O Logical Connector
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
GND
GPI
10
GPI
12
GPI
14
GPI
16
GND
n/a
n/a
n/a
n/a
Vext
GND
GPO
10
GPO
12
GND
GPO
14
GPO
16
GND
GPI
9
GPI
11
GPI
13
GPI
15
GND
n/a
n/a
n/a
n/a
Vext
GND
GPO
9
GPO
11
GND
GPO
13
GPO
15
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
Table 2-5: AUX IO 2 GPI/O Logical Connector (optional)
2.9.5.3. CONNECTING THE GENERAL PURPOSE INPUTS AND OUTPUTS
GPI interfacing with the EMC is possible through general-purpose inputs and outputs available on the
9700BHP-AUX breakout panels. The GPIs are active low with internal pull-up resistors (4.7k Ohms) to
+5 V. To make an input active, lower the signal to near ground potential (i.e. connect to shell or
chassis ground). This can be done with a switch, relay, TTL drive, GPO output, or using another similar
method. Figure 2-9 shows the input circuit for the general-purpose inputs.