Incoming Trunk CO Lines
ASCO Model 135 (Edco H Series) Surge Protective Device
The ASCO Model 135 modules are ultra high speed fused solid state dual listed Primary (UL 497) and Secondary (UL 497A) protectors for KEY/PABX systems. The units are available in Analog and Digital clamping voltages.Model 135 single pair modules fit onto a standard M1-50 split block and replace bridging clips. In addition, these modules require an ASCO MGBW Ground Rail accessory for each M1-50 block used.
Telco Equipment Rack
ASCO Model 247 (Islatrol RM) Surge Protective Device
The ASCO Model 247 (Islatrol® RM) Rackmount Surge Protective Device is ideal for protecting the power feeding valuable rack equipment. Status LEDs indicate the correct power is coming to the unit, whether the unit is properly grounded and whether the surge components are still intact. Units are available with an optional digital meter, mounted on the front of the unit, which will monitor the voltage, current and power of the protected equipment.
ASCO Model 138 (Edco RJA-RJD Series) Surge Protective Device
The ASCO Model 138 incorporates female jacks in and out. The ANALOG Model 138 voltage clamp is set for C.O. Trunks and Analog Telephone Extensions (with ring in voltage), and the DIGITAL Model 138 voltage clamp is set for Digital Extensions (no ring in voltage).
ASCO Model 245 (Islatrol® SP-6TVN) Surge Protective Device
The ASCO Model 250 (Islatrol® SP-6TVN) is an industrial-strength surge protection/filtering device that plugs into a standard duplex receptacle. It features uniquely designed repositionable outlets or easy installation behind desks and other furniture. It protects your sensitive home or office equipment, including TVs, home theaters, satellite dishes, computers, printers and copiers from damaging power disturbances traveling through your wiring into your electrical outlets.