Chapter 2: System hardware
PTP-SYNC unit
Page 2-43
Category
Specification
Pulse width
1
μ
s to 500 ms
Polarity
Reference edge is when pin 3 (PPSA) is positive with
respect to pin 6 (PPSB)
Table 49 PTP-SYNC unit timing specifications - 1PPS IN (SMA)
Category
Specification
Signal type
1 Hz signal
Pulse
Positive pulse, reference edge is rising edge
Maximum voltage
5 V
Threshold
0.4 V to 0.6 V
Input impedance
45 ohms to 55 ohms
Pulse width
1
μ
s to 500ms
The pinouts of the PTP-SYNC unit GPS/SYNC IN port are specified in
Table 50 GPS/SYNC IN port pinouts
Pin no.
Connector pinout signal name
Signal description
Pin 1
12VGPS
12 V output to GPS receiver module, 250 mA max
Pin 2
GND
Ground
Pin 3
GPS_1PPSA
1 Hz pulse input
Pin 4
GPS_RXDA
GPS receive data
Pin 5
GPS_RXDB
GPS receive data
Pin 6
GPS_1PPSB
1 Hz pulse input
Pin 7
GPS_TXDA
GPS transmit data
Pin 8
GPS_TXDB
GPS transmit data
Note
The GPS_1PPS, GPS_RXD and GPS_TXD signals conform to International
Telecommunication Union (ITU) recommendation V.11 (RS422)
Содержание PTP 670 Series
Страница 1: ...F Cambium PTP 670 Series User Guide System Release 670 02 50 ...
Страница 349: ...Chapter 5 Installation Installing an SFP Ethernet interface Page 5 52 Correct Incorrect ...
Страница 405: ...Chapter 6 Configuration and alignment System menu Page 6 46 Figure 151 LAN Configuration page PTP topology TDM support ...
Страница 406: ...Chapter 6 Configuration and alignment System menu Page 6 47 Figure 152 LAN Configuration page PTP topology SFP support ...
Страница 408: ...Chapter 6 Configuration and alignment System menu Page 6 49 Figure 154 LAN Configuration page HCMP topology ...
Страница 416: ...Chapter 6 Configuration and alignment System menu Page 6 57 Figure 156 QoS Configuration page IP MPLS ...
Страница 445: ...Chapter 6 Configuration and alignment Management menu Page 6 86 Figure 173 Time Configuration page SNTP enabled ...
Страница 551: ...Chapter 7 Operation System statistics Page 7 64 Figure 250 Main Port Counters page when main port is bridging traffic ...