100-M0171X3
20 of 95
GMS Inc. doing business as Cobham Tactical Communications and Surveillance
www.cobham.com/tcs
Pin
Signal
Notes
54
RS422-C N
Port C – For KLV Meta data and other serial data
21
GND
Digital GND
55
GND
Digital GND
22
3.3v I/O
Reserved
56
3.3v I/O
Reserved
23
3.3v I/O
Reserved
57
3.3v I/O
Reserved
24
FPGA GPIO3
Video1 and video 2 reference clock test point. Selectable
58
FPGA GPIO2
GPS one Pulse Per Second (1PPS), 3.3v standard input.
25
FPGA GPIO1
Reserved for special applications
59
FPGA GPIO0
Reserved for special applications
26
USB D P
Part of USB interface
60
USB D N
Part of USB interface
27
USB VBUS
Part of USB interface
61
PA EN
External PA Control (+3V TTL ON)
28
SPARE 0
Reserved for special applications
62
SPARE 1
Reserved for special applications
29
GND
Digital GND
63
+3.3V
30
ENET LTC LED
Part of LAN I/P interface
64
ENET LTA LED
Part of LAN I/P interface
31
ENET RTC LED
Part of LAN I/P interface
65
ENET RTA LED
Part of LAN I/P interface
32
CHASSIS GND
Safety Ground connected to housing
66
CHASSIS GND
Safety Ground connected to housing
33
ENET RD P
Part of LAN I/P interface
67
ENET RD N
Part of LAN I/P interface
34
ENET TD P
Part of LAN I/P interface
68
ENET TD N
Part of LAN I/P interface
5.2
Analog Audio Input Configurations
The M2TE has two analog audio circuits. Each circuit is dedicated to one “Program” and has separate
configurations/settings for Line and Mic levels. Remember that each of the two video inputs are
processed and distributed as separate Programs in the M2TE’s Transport Stream. These ports support
a single differential (MONO) input or dual (STEREO) Line-Level inputs. Only one set of inputs will be
active at a time per Program.
Table 6 below defines the wiring for all the different possibilities along with the location of Mic Bias
connections.