User`s manual

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.