The WR-Z16 devices and the WR-ZEN family (WR-ZEN TP, WR-ZEN TP-FL, WR-ZEN
TP-32BNC) run on the same platform (WRZ-OS) sharing the same features, timing stack
and set of tools.
All the devices running the WRZ-OS provide multiple interoperability options that include
1PPS/10 MHz signals, standard PTP, and NTP. They support SNMP v2/v3, rsyslog, and
have an integrated web GUI for intuitive management and enhanced command line tools
for advanced users. The following list contains the different form factors offered within the
WR-ZEN family and a brief description of their main characteristics:
WR-ZEN TP-FL: A fundamental, cost-effective 1U form factor version of the WR-
ZEN TP. It has a front dual power supply. It includes 1PPS/10 MHz SMA outputs and
standard PTP interoperability on its management interfaces. It can include a 4 x
1PPS expansion on demand.
WR-ZEN TP: Standard 1U form factor version of the time provider. It accepts mul-
tiple fans and it has a rear dual power supply. It includes multiple 1PPS/10 MHz on
the SMA or DB9 outputs, standard PTP interoperability on its management inter-
faces, IRIG-B, NMEA and ToD.
WR-ZEN TP-32BNC: Expanded 2U form factor version of the WR-ZEN TP. It has a
front dual power supply. It includes 1PPS/10 MHz SMA outputs and standard PTP
interoperability on its management interfaces. The main characteristic is that it
includes 32 BNC ports configured to work as 16 x 1PPS and 16 x 10 MHz outputs. A
configuration with 32 x 1PPS is possible with an optional PPS expansion license.
Figure 1-2: WR-ZEN TP-FL (left), WR-ZEN TP (middle), WR-ZEN TP-32BNC (right)
1.4 About White Rabbit / High-Accuracy Technology
One of the key-features of the WR-Z16 family is that it fully supports the White Rabbit
(WR) protocol, an extension of the IEEE 1588 (PTP), to achieve ultra-accurate sub-nano-
second synchronization in Ethernet-based networks. Since the publication of the new
IEEE 1588-2019 standard, White Rabbit is also known as “PTP High Accuracy” (HA) pro-
file, and has the following characteristics:
Time Precision: WR provides a common clock for physical layer in the entire net-
work, allowing synchronization at sub-nanosecond level with picoseconds precision.
In other words, the timing budget consumed by WR is almost insignificant.
4
CHAPTER 1 • WR-Z16 User Manual Rev. v3.4
1.4 About White Rabbit / High-Accuracy Technology
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