used,

Specification:

tii’s Totel Failsafe® Station Protector Modules are the basic components of tii Station Protectors, and the tii 356M2 module consists of a tii Heavy Duty three-electrode gas tube surge arrester of narrow breakdown voltage range, a failshort mechanism and backup airgaps. KEY PRODUCT BENEFITS X The entire assembly is completely encapsulated to prevent moisture entry and environmental contamination. X The completely self-contained unit is provided with a corrosion-resistant ground strap and two threaded binding posts for service wire and station wire connections. X Totel Failsafe® protection is provided in three ways: 1) The narrow breakdown voltage range gas tube operates on overvoltage surges and shunts the transient to the ground. 2) The failshort device operates under power cross conditions to permanently and safely ground the line. X 3) The backup airgap provides surge protection in the unlikely event the gas tube arrester vents. X The tii 356M2 may be employed in a variety of single and multiple pair protector assemblies and NIDs. When mounted in a tii station protector or network interface device (NID), the assembly is UL listed in the Signal Circuit Protector category. X The tii 356M2 uses the tii 11 three-electrode balanced gas tube with narrow breakdown voltage range. X The fast acting and narrow breakdown voltage range of the balanced gas tube improves protection coordination between primary and secondary protectors. X The gas tube recovers after a surge, and remains ready for continued operation normally for many years. This results in reduced maintenance cost over the life of an installation. INDUSTRY STANDARDS X Listed to UL 497 in the Signal Circuit Protector category when mounted in a tii station protector or network interface device (NID). X Surge handling and life capabilities exceed the objectives of Telcordia GenericRequirement GR-1361 CORE.

DC Breakdown Voltage 270 - 420 vdc DC Holdover 52 vdc @260 ma Maximum Single Impulse Discharge Current, 8/20 waveform 20 kA (10 kA/Side Simultaneously) Impulse Life (see note 2) 10 Amp, 10/1000μsec waveform 100 Amp, 10/1000μsec waveform 300 Amp, 10/1000μsec waveform 1500 Surges Min. 100 Surges Min. 50 Surges Min. AC Discharge Current (see note 2) 10 Amp, 1 Second 1 Amp, 1 Second **11 cycles, 60 Hz 20 Operations Min. 60 Operations Min. 130 A rms (65 A each side to ground simultaneously) *Capacitance <20 pF ** Impulse Breakdown Voltage (see note 1) @ 100 V/μsec 550 V Max. *Insulation Resistance @ 100 vdc 100 Megohms Min. Airgap Breakdown Voltage Meets Requirements of UL 497 *Line to Ground **Test Method: IEEE 465.1, RUS PE-80 Notes: 1. For 99% of distribution. 2. End of life DC breakdown (lower limit) = 250 volts