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GENERAL DESCRIPTION
Table 1-8
RS-232 Talker (J9)
Pin Number
Designation
Pin 1
Not Used
Pin 2
RX
Pin 3
TX
Pin 4
DTR
Pin 5
Ground
Pin 6
DSR
Pin 7
RTS
Pin 8
CTS
Pin 9
Not Used
F.
IRIG B AC CODE OUTPUT (BNC J10)
Connector J10, the IRIG B (B120) Serial Time Code output from the Generator
contains Time-of-Year plus CF (Control Functions) and STOD (Seconds Time-
of-Day).
Table 1-9 shows the specifications of the IRIG B AC Serial Time Code output.
Table 1-9
IRIG B (B120): BCD Time-of-Year (J10)
Carrier Frequency
1kHz sine wave.
Amplitude
Adjustable from 0 to 5V Peak to
Peak on the Mark Pulse.
Modulation Ratio
Adjustable, 3:1 nominal.
External Load
50
Ω
minimum.
G.
IRIG B DC CODE OUTPUT (BNC J11)
Connector J11, the IRIG B (B000) Serial DC Level Shift Time Code output from
the Generator contains Time-of-Year plus CF (Control Functions) and STOD
(Seconds Time-of-Day).
Table 1-10 shows the specifications of the IRIG B DC Serial Time Code output.
Symmetricom, Inc.
TM7000 TymMachine TCG/T (Rev D)
1-9