Meinberg GPS170LCD-MP - Manual (Page 56)

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Signal Description GPS170
Name Pin Function
GND 32a+c Ground
VCC in (+5V) 1a+c +5V supply
VCC in (+12V) 2a+c +12V supply
VCC in (+5V) 3a+c +5 V supply (TCXO / OCXO)
P_SEC out 6c Pulse when second changes, TTL level,
active high, length 200 msec
P_MIN out 8c Pulse when minute changes, TTL level,
active high, length 200 msec
/RESET in/out 9c RESET signal, Open Drain pulled up to +5V
Prog. Pulse out 10c-12c programmable pulse, TTLlevel
100 kHz out 10a 100 kHz frequency output, TTL level
1 MHz out 11a 1 MHz frequency output, TTL level
10 MHz out 12a 10 MHz frequency output, TTL level
TIME CODE DC 13a Time code unmod. out
TIME CODE AM 14a Time code mod. out 3Vpp
DCF_MARK out 17c DCF77 compatible second marks, TTL level
active high, length 100/200 msec
TIME_SYN 19c TTL output, HIGH level if synchronization has
been achieved, LOW level after reset or in case of
serious errors (e.g. antenna faulty)
F_SYNTH 21c Synthesizer output, TTL-Pegel
F_SYNTH_OD 22c Synthesizer output, Open Drain,
max sink current to GND: 150mA
F_SYNTH_SIN 23c Synthesizer output, sine-wave 1.5 V eff.
CAPx 27c, 28c Time capture inputs (TTL), capture on falling slope
COMx TxD out COMx RS-232 transmit data output
COMx RxD in COMx RS-232 receive data input
SDA, SCL, SCL_EN internal serial control bus, for extension boards
(reserved) reserved, do not connect