ADTRAN 3000 NTU-8 Installation And Maintenance Manual

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ADTRAN 3000 NTU-8 Installation And Maintenance Manual Manual pdf 10 page image

Total Access 3000/3010 NTU-8 Single Fiber Quad E1 Installation and Maintenance Practice4 61182301E1-5APhysical InstallationTo install the NTU-8F, perform the following steps:1. Place the unit in a location where a DC power source is available. This unit operateswithin a voltage range of –24 VDC to –48 VDC. If a wall-mount installation is required,attach the supplied hangers to the unit.2. Connect power to the NTU-8F housing. Power is connected to the NTU-8F by connectingthe plus (+), minus (–), and ground wires to a three-position terminal block located at theright of the backplane (see Figure 2).Figure 2. NTU-8F Rear PanelWhen the NTU-8F first powers up, it runs power up self-tests. Once the power up self-test iscomplete, the status LEDs will reflect the true state of the hardware.Front Panel LEDsThe NTU-8F provides front panel LEDs to display status information. The NTU-8F LEDs andstatus descriptions are shown in Table 2.Table 2. Front Panel LEDsLabel Status DescriptionPWR {zzOffGreenYellowPower supply or fuse failureIn ServiceOut of Service-Unassigned or MaintenanceOPT {zzOffGreenRedUnit is Out of Service-UnassignedUnit is active and optical interface is synchronizedUnit is active, but Rx loss on the optical interfacePORT 1-4 {zzzOffGreenYellowRedPort is provisioned Out of Service-UnassignedPort is provisioned and functioning properlyPort is in loopback or a BERT is activePort is active with an active major alarm condition