Maximum cable length for different output signals in time synchronization

TTL signals (TC-DCLS, PPS, PPM, DCF_MARK) via coax cable (RG58)

• Maximum 50m cable length
• Input level and input sensitivity at the receiver must be observed

RS-232 signals (COM) via shielded data cable

• dependant on cable quality
• dependant on the baud rate of the signal (e.g. 15m at 19200 Baud)

RS-485 / RS-422

• maximum 500m cable length
• dependant on the baud rate of the signal

Modulated IRIG signal (TC-AM/IRIG-B)

• maximum 600m cable length
• dependant on signal noise environment
• dependant on the quality of the coax cable

Ethernet (NTP, PTP, IEEE1588)

• maximum 100m cable length with Cat5 and 100Base-T
• more with switches or hubs
• important! for PTP/IEEE1588 all Switches must be PTP aware

Fiber-Optic Multi-Mode 850nm line (GI 50/125µm or GI 62,5/125µm gradient fiber)(TC-DCLS, PPS, PPM, DCF_MARK)

• with end-to-end fiber maximum 2000m fiber length