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Appendix A
Specifications
MSAM specifications
T-BERD/MTS/SC Getting Started Guide
Page 196
22046537, Rev. 016
March 2018
MIL-188-114 interface specifications
Specification MIL-188-114 describes a data communications interface that uses
DB-25 connector or DB-37 connectors using balanced or unbalanced MIL-188-114
amplifiers for all circuits. The MSAM supports testing of MIL-188-114 circuits in asyn-
chronous or synchronous mode.
lists the MIL-188-114 specifications.
Supported circuits
lists the unbalanced MIL-188-114 circuits supported by the MSAM.
Sync Timing Mode
Tx Timing Sources
– Interface (from the TT circuit)
– Internal Synthesizer
– External Clock
– Interface Recovered
Table 79
V.36 DCE emulation specifications (Continued)
Specification
Description
Table 80
MIL-188-114 specifications
Specification
Description
Timing modes
Synchronous
Maximum speed
Balanced
Unbalanced
20 Mbps
256 Kbps
Minimum output range
+/- 2 V terminated
Rise/Fall times
10 nS
Receiver minimum input sensitivity
+/- 200 mV
Hysteresis
Meets minimum input range
Table 81
Unbalanced MIL-188-114 circuits
Supported Circuits
RS
Request to Send
ST
Transmitter Element Signal Timing from DCE
SD
Transmit Data
TR
Data Terminal Ready
RD
Receive Data
RL
Remote Loopback
TM
Test Mode
Shield
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