The MA5608T Mini OLT is designed to address Fiber to the premise (FTTP) or deep fiber deployment scenarios where a large OLT chassis may not be the best fit for a variety of reasons. Ground the chassis shell securely so that the influence electricity, leakage electricity can flow to the ground, improving the protection against electromagnetic interference. Use a ground cable to connect the ground point of the chassis shell to the ground bar of the telecommunications room or to the ground directly. It is recommended that the grounding resistance of the telecommunications room should be less than 10 ohms. Refer to the local standards to ground the chassis. The ground point of the chassis shell is on the left of the chassis, and there is a ground point on the front of the left mounting bracket as shown in. The MA5608T chassis adopts AC and DC power supply. This topic describes the power distribution principle of the MA5608T chassis.
The MA5608T chassis adopts -48 V (-38.4 V to -57.6 V)/-60 V (-38.4 V to -72 V) DC power supply and AC power supply. The following uses the -48 V DC as an example.
Figure 1: Powe rdistribution principle of the MA5608T chassis