Spec：

• ● Power Supply：DC-12V，it supplies by each elevator phone（ with DC-12V battery）
• ● Power Consumption：Standby 40mA˙Max. 160mA
• ● Case Material：A B S plastic
• ● Dimension：137mm ×66mm ×57mm

Function：

• ● 1.The pronunciation disseminates news the function.
• ● 2.It communicates with elevator phone of machine room.
• ● 3.It communicates with elevator phone of center station.( more than one of station)
• ● 4.It communicates with digital elevator phone.
• ● 5.Communication of distance:400 meter（0.6φwire），1000 meter（over 0.9φwire）
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