The eBridge4SPT 4 Port PoE/PoE+ Transceiver Switch is designed for use with eBridge100SPR to deliver data and power over coax cable. eBridge4SPT allows you to upgrade your existing infrastructure by replacing a single analog device with up to four (4) PoE/PoE+ devices. Data transmission and power over the Coax is possible up to 500m. Maximum range from head end to the PoE camera/device is 600m taking into consideration that up to 100m of structured cable may be deployed at each end. eBridge4SK enables cost-effective system upgrades and eliminates the costs and labor associated with installing new network cabling.