Features：
•TelephoneMachines can be combined with programmable switches and couplers to form an independent communication system.
•Can be configured into fiber optic ring network communication mode/IPCommunication Mode
•Wide voltage input,AC36V～268VAll are operational.
•With backup power supply mode, capable of maintaining operation during power outages4HourExpandedBroadcast)；
•Maintain normal communication functionality of the phone without power.
•Each phone is an independent workstation; a failure in one does not affect the others.WholeThe system operates.
•After assembly into the calling system, the product features an automatic gain function.
•The circuit utilizes internationally standardized double-sided integrated circuits, featuring clear call transmission and stable operation.
•CastIron casingHigh mechanical strength, strong impact resistance.
•Safety-coupledApplianceSupplementary use, forming an underground coal mine exchangeable telephone broadcast amplifier communication system through switches.。
Product Features：
•Ambient TemperatureS： -15oC-H^0oC；
• Average Relative Humidity:＜95%(25°C)；
• Atmospheric Pressure:80kPa～106kPa；
• Noise Environment:＜112dB；
• Contains explosive mixtures of methane and coal dust, but no destructive insulationCorrosionApplications for sex gases.
•No dripping permittedSpraying, etc. special treatmentsEvilChallenging environment scenarios.
Product Model:ZB-127Z
Explosion-Proof Marking:Exdib I Mb
Communication System: Master Unit Available/IP/Fiber Optic
Ingress Protection Rating:IP66
Dimensions:402X385X105
MaterialQuality: Cast Iron with Stainless Steel Panel
Yan Color: Blue( customizable )
