Introduction
5
• SFP Port A: This port is used to connect the tester to the network through an opti-
cal interface with the help of an SFP module.
• SFP / SFP+ Port B: This port is used to connect the tester to the network through
an optical interface with the help of an SFP module.
• SFP+ Port A: This port can be used also with SFP+ modules compatible with
10 Gb/s transmission.
• SFP+ Port B: It can be used also with SFP+ modules compatible with 10 Gb/s
transmission.
• BNC Port C RX: Unbalanced 75 input. This input is used to analyse clock (1544
kHz, 2048 kHz, 10 MHz) and TDM (E1 and T1) signals. It is used as a clock refer-
ence input port as well.
• BNC Port C TX: Unbalanced 75 output. This output is used to generate TDM
signals (E1 and T1). It is used as a clock output as well.
• RJ-45 Port C TX/RX: Balanced 120 input / output. This interface is used to ana-
lyse clock signals (1544 kHz, 2048 kHz, 5 MHz 10 MHz, 1 PPS, 1 PP2S) and gen-
erate and analyse TDM (E1 and T1) signals. This interface is used as a clock
input / output as well.
• SMA GNSS: This is a SMA connector that can be used to attach a GNSS
antenna. The purpose of the GNSS input is to provide a reliable and accurate syn-
chronization source for the test unit (See section 2.6.2). This input is available only
in units equipped with the built in GNSS receiver.
• SMB Port C PPS RX: 1 PPS 1 PP2S test input. This is the port to be used for
analysis of unbalanced 50 1 PPS signals formatted as specified in ITU-T
G.8271. This port is available only if the GNSS option is installed in the unit
• SMB REF IN: 1 PPS reference input. This port could be used as a 1 PPS clock
reference input used in some latency and synchronization tests. This is an unbal-
anced 50 interface that follows standard ITU-T G.8271. This port is available
only if the GNSS option is installed in the unit
• SMB REF OUT: 1 PPS reference output. This port could be used as a 1 PPS clock
reference output. The output is synchronized with the local oscillator. This is an
unbalanced 50 interface that follows standard ITU-T G.8271. This port is availa-
ble only if the GNSS option is installed in the unit.
• RJ 45 REF IN/OUT: Reference input / output. It generates or accepts balanced
1544 kHz, 2048 kHz, E1, T1, 5 MHz, 10 MHz, 1PPS and 1PP2S clock references.
•PHM Slot: Enables connection of a Pluggable Hardware Module (PHM) to the test
unit. The currently available PHMs include the datacom module (PHM-20), the
dual port IEEE C37.94 module (PHM-21), the G.703 / E0 module (PHM-22) and
the voice frequency module (PHM-23).
• Micro SD Card: Slot for micro SD Cards. These cards can be used as external
storage devices.
• Hardware reset: Resets the hardware to recover the unit from most malfunctioning
situations.