industrial telephone - Product

Other Specification : Defend Grade: GB 4208-93 IP 66 / IP 67 Call Capability Of Phone: GB/T 15279-94 Application Scope: Metro, Light Railroad, Speedway, Ship, Mine, Etc. External Configuration Specification: External Dimension: 320*205*120mm Weight: 5.5Kg Installment Dimension:139*260mm M8 Bolt Is Used To Install Main Features : 1. Cabinet:aluminum Alloy Die - Casting, High Anti-violent, Able To Glisten, Convenient For Looking For 2. Door Cover:orient Automatically And Good Self - Closing, Convenient For Use. 3. Handset:made Of Special Engineering Plastic, High Anti-knock Resistance. High Tensile Strength Resistance And High Anti-violent. 4. All Of The Components Including Handset Telephone Receiver And Transmitter, Keypad, Buzzer, Circuit Board And Cabinet Are Designed To Be Multi - Layer Waterproof And Dust - Proof Which Is Up To Class III Grade. The Whole Machine Is Up To National Standard GB4208-93 IP 66. 5. Phone Is Provided With High Stability, High Anti-jamming Capability, And It Is Up To National Standard GB/T 15279-94. Specification: 1. Applicable For Various Types Of SPC Exchange And Dispatching Exchange System With Feeding Voltage Of 48-60V. 2. Ambient Temperature:-30 ~ +60 DegreeRelative Humidity:10%~95% Atmospheric Pressure: 86~106Kpa Circumstance Noise:less Than 60dB(A) 3. Sound Level Of Ringing:over 70dB(A). 4. Standard Frequency:low Frequency Group:697. 770. 852. 941Hz, High Frequency Group:1209. 1336. 1477Hz, Frequency Deviation:-1.5% ~ +1.5% If Service Line Is A 3Km Signal - Level: Standard Frequency:low Frequency Group:-12dB~-6dB, High Frequency Group:-10dB~-4dB, Level Difference Between Low And High Frequency Of Compound Signal:0dB~3dB, The Total Distortion Caused By Intermodulation Of Harmonic Wave Is Lower Than The Basic Level By At Least 20dB. 5. Call Transmission Index:(5KM)SLR<12,RLR<-1,STMR>10, Output Impedance Is 600 Ohm. 6. Super St

View Profile