User's Manual

Table Of Contents
68 Installation
Chapter 2 - Installation Guidelines
2.4.3 Installing the GPS Adapter
1 The GPS Adapter is installed on the 1U high panel that can be used also for
installation of ODU Power Feeder modules. The panel is supplied with blank
ODU GPS RJ-45 jack
1PPS (RS-442 interface) from Outdoor GPS Receiver
Serial control signals (RS-422 interface) to Outdoor GPS Receiver
Power (12 VDC) to Outdoor GPS Receiver
(GND) Grounding Screw Connection to ground (earth)
Table 2-16: GPS Adapter LEDs
Name Description Functionality
PWR Input power indication
Off - Power input failure
Green - 12 VDC power supply from NPU is OK
1PPS 1PPS signal indication
Blinking Green - 1PPS signal from GPS Receiver
is detected
Red - 1PPS signal is not detected
Active GPS - ODU ODU GPS selection indication
Green - indicates that the selected GPS Receiver:
is ODU (Outdoor)
Off - ODU GPS Receiver is not selected
Active GPS - IDU IDU GPS selection indication
Green - indicates that the selected GPS Receiver:
is IDU (Indoor)
Off - IDU GPS Receiver is not selected
Active GPS - INT INT GPS selection indication
Green - indicates that the selected GPS Receiver:
is INT (Internal). Internal is not supported in current
release.
Off - INT GPS Receiver is not selected
INT CLOCK Internal clock source indication
Green - Internal 16MHz clock is ok (not supported
in current release)
Red - Internal clock is not available or clock failure
To install the GPS Adapter:
Table 2-15: GPS Adapter Connectors
Name Connector Functionality