Sagetech MXS, Installation Manual

Page: 30 / 56

MXS System Description and Installation Manual UM06945
© Sagetech Avionics 2022 Proprietary Confidential Page 30 of 56
Pin
Number
Signal Direction Signal Char.
11
Reserved No Connect -
12
Pin 12 -37 short. Bi-Directional Pass-through
13
5V Power 5 VDC
14 Reserved for GPS-PPS
6
Input TTL PPS
15 Maintenance Mode
7
Input GND/Open
16 Weight-on-Wheels
Input GND/Open
17 Com0-Mode
8
Input GND/Open
18 GND
Power Ground
19
Com0-422-RX+
8 9
Com0-232-RX
Input RS-422 RX+
RS-232 RX
20
Com0-422-TX+
8 9
Com0-232-TX
Output RS-422 TX+
RS-232 TX
21
Com1-422-RX+
8 9
Com1-232-RX
Input RS-422 RX+
RS-232 RX
22
Com1-422-TX+
8 9
Com1-232-TX
Output RS-422 TX+
RS-232 TX
23 Ethernet-TX+
9
Output IEEE 802.3+
24 Ethernet-RX+
9
Input IEEE 802.3+
25 GND
Power Ground
26 GND
Power Ground
27
Reserved - -
28
Reserved - -
29
Reserved - -
30
Reserved - -
31
Reserved - -
32
Reserved - -
33
Reserved - -
34
Reserved - -
35
Pin 10 - 35 short Bi-Directional Pass-through
6 MXS does not support GPS PPS, this is a future provision. Pin can be left floating (No Connect)
7
The transponder must be in maintenance mode for the Installation message to be received and processed, otherwise the
message is ignored.
8 RS-422 bus will be selected if pins are left unconnected. The pin must be grounded to select RS-232 bus. (See Table 6-2)
9
Transmit and receive are from the MXS perspective. Connect as appropriate. There must be at least one COM port
connected for control.