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P a g e
P4: Sync and Antenna Alarm Relays (4-pin 3.81 mm Connector)
The port provides two alarm output channels. The alarm outputs are type “A” (normally
open) dry contact types.
Note
: the “Normally-Open” (NO) descriptor refers to the de-energized state of the relay.
The NTS 02-G operates with the alarm relays energized during normal operation, and de-
energized in the alarm state. It follows that, in the event of all power to the NTS 02-G being lost, both
alarm relays default to the “alarm” state (open contact). The “+” and “-” symbols are included for
reference purposes only, as the alarm contacts are not polarized.
P4 A
is a GNSS signal fail (antenna disconnected or antenna short (over-current)) alarm. Activation of
the alarm (opening of the contact) is delayed by 10 seconds from the onset of the triggering condition.
P4 B
is a synchronization fail alarm. This alarm is active (contact open) when the unit is not
synchronized and is not in the holdover state.
ADMIN/ETH 1: Ethernet Administration Port (RJ-45)
The Ethernet administration port (ETH1) features an RJ-45 connector and
supports 10/100 Mbps, Auto MDI-X and Auto Negotiate. The port indicator LEDs
conveys the Link (LNK) and Activity (ACT) status for the port. This port is used to
configure NTS 02-G settings and all network ports via the Tekron Configuration
Tool, which is available for download from the Tekron website at
ETH 2 and ETH 3 – Ethernet Communication Ports (RJ-45)
The second and third Ethernet communication ports (ETH2 and ETH3), feature RJ-
45 (10/100 Mbps, Auto MDI-X and Auto Negotiate). These ports include indicator
LEDs which convey the Link (LNK) and Activity (ACT) status for the associated port.
Note:
The NTS 02-G features absolute security between all ports, so that no Ethernet paths exist between
any of the three Ethernet ports. For this reason, the NTS 02-G does
not
support hub, switch, or router
functions.