11 Technical Appendix
Pin Assignment of the DSUB9 Connectors (male):
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Synchronization with PPS + string:
Pin 1: PPS
Signal level: TTL
Pulse length:
≥
5
µ
s (active high)
Pin 2: String
The following timestrings (time telegrams) can be used:
- NMEA RMC
- NMEA ZDA
- Meinberg Standard
- Uni Erlangen
COM
Pin Assignment of the optional XHE-SPI Connectors:
A1: PPS In
A2: PPS Out
Pin 1: SCL_Out (SPI Clock)
Pin 2: CS (Chip Select)
Pin 3: MOSI (Master Out, Slave In)
Pin 4: MISO (Master In, Slave Out)
Pin 5: GND
Attention:
Use this plug only to connect a MEIN-
BERG IMS-XHE
Rb
Rubidium expansion chassis.
IMS - LANTIME M4000
Date: 27th May 2021
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