Features ■ Multi-stage protection ■ Meets test requirements of Telcordia GR 974, GR1361, SR 5165 and RUS PE-80 ■ Balanced TRIGARD® ■ Telcordia Analysis report DA-1843 ■ Quick response to surges ■ High-speed network compatible ■ High energy handling ■ Reliability is improved by elimination of the ■ Binding post or optional Insulation air Back-Up-Gap (BUG) ■ Displacement Connectors (IDC) c U L us UL Listed per UL 497 (File: E53117) ® 2377-45 Series Digi.Guard – MSP® Maximum Duty Station Protector Bourns® Model 455HS Multi-Stage Protector (MSP®) is a new generation telecommunications station protector designed to be the best all around choice for protecting copper pair voice-band and high-speed data circuits. Combining the strengths of Gas Discharge Tube (GDT) and solid state overvoltage protection, the Model 455HS MSP® integrates three advanced technologies: our proprietary advanced GDT, precision matched metal oxide varistors (MOV), and a patented Switch-Grade Fail-Short mechanism. The 2377 series offer superior service life, far exceeding Telcordia standards. Bourns® 2377-45 can be used universally for POTS and high speed data, e.g. ISDN, ADSL, ADSL2+, VDSL, VDSL2, other xDSL protocols and high speed Ethernet. Bourns® MSP® technology provides unparalleled overvoltage protection with low loss on paired copper communications circuits. The Model 455 is the most economical, reliable and effective choice to protect paired copper communications circuits. The IDC version, with environmental sealant, provides additional ease of installation and protection against corrosion. Characteristics Tested per IEEE C62.31, UL 497, CSA C22.2, Telcordia GR-1361 and applicable sections of Telcordia GR 974. DC Breakdown ...................................................................................................................................... 300-400 V AC Breakdown ........................................................................60 Hz ................................................... 300-400 V Impulse Breakdown..................................................................100 V/µs .............................................. 600 V 1000 V/µs ............................................ 650 V Insulation Resistance ..............................................................100 Vdc ............................................... > 1 GΩ Insertion Loss ...........................................................................100 MHz .............................................. < 0.4 dB (Category 5) Return Loss ..............................................................................100 MHz .............................................. > 14 dB (Category 5) Capacitance Line to Line - Binding Post..................................1 MHz .................................................. 12 pF typical Capacitance Line to Line - IDC ................................................1 MHz .................................................. 14 pF typical Capacitance Line to Ground - Binding Post ............................1 MHz ................................................. 24 pF typical Capacitance Line to Ground - IDC ...........................................1 MHz .................................................. 28 pF typical Impulse Reset1 ......................................................................... 52 V, 260 mA ..................................... < 10 ms3 135 V, 200 mA ..................................... < 10 ms3 150 V, 200 mA ..................................... < 150 ms Impulse Life Characteristics (Per-Side, Simultaneously) .......................................................100 A, 10/1000 µs ............................... > 3000 operations2 300 A, 10/1000 µs ............................... > 1000 operations2 500 A, 10/1000 µs ............................... > 1000 operations4 2,000 A, 10/250 µs ............................. > 100 operations2 5,000 A, 20/100 µs .............................. > 10 operations2 20,000 A, 8/20 µs ............................... > 10 operations4 AC Life Characteristics ............................................................. 0.5 A rms continuous ......................... > 30 seconds 1 A rms, 1 second, 600 ft. cable ......... > 60 operations 1 A rms, 1 second, 1 mile cable .......... > 60 operations 10 A rms, 1 second ............................. > 20 operations 200 A rms, 11 cycles ........................... 1 operation5 120 A rms, 0.1 second ........................ 1 operation Life Test Criteria Insulation Resistance Throughout the Life Test .................................................................................... 100 MΩ Life Test Failures .................................................................................................................................... 0.0 % Failures During Environmental Cycling w/ surges ................................................................................ 0.0 % Fail-Short (vented or non-vented gas tube) .......................................................................................... > 30 Arms, simultaneously Operating Temperature ......................................................................................................................... -55 to +85 °C Notes: 1 Network Applied 2 Exceeds Telcordia (Bellcore) GR 1361 3 Surpasses Telcordia GR 974 4 RUS (REA) PE-80 5 Protector may short to ground Line to Line voltage is approximately 1.8 to 2 times the stated Line to Ground breakdown voltage. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 2377-45 Series Digi.Guard – MSP® Maximum Duty Station Protector Product Dimensions 2377-45-HS, 2377-45-BC DIMENSIONS: 57.15 (2.25) 43.94 (1.73) MILLIMETERS (INCHES) 30.6 (1.20) 37.08 (1.46) UL 19.05 (0.75) C UL 16.26 (.64) 2377-45-HS-IDC, 2377-45-BC-IDC 58.16 (2.29) 30.6 (1.20) 26.9 (1.06) 19.05 (0.75) UL 2372-02 Ground Mounting Stud (order separately) 5.59 (.22) 4.98 (.196) J 16.26 (.64) 16.26 (.64) C UL 14.73 (1.58) How To Order 2377-45-HS .......................................... Binding Post Connectors 2377-45-BC* .......................................... Balanced Capacitance, Binding Post Connectors 2377-45-HS-IDC ............... Insulation Displacement Connectors 2377-45-BC-IDC* ................................... Balanced Capacitance, Insulation Displacement Connectors * BC versions for xDSL systems that require Tip-to-Ground and Ring-to-Ground capacitive balance of ≤1 pF. 10-32 UNF-2A THREAD 41.91 (1.65) Related Products 80052 ................................................Test Clip for IDC 33.37 (1.55) 80053 ...................................... Insulation Tool for IDC 4.57 (.18) 17.78 (.70) 15.75 (.62) 31.75 (1.25) REV. M 07/11 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.