D PH 16
User Manual: PH-16
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Telex ® ® Description and Wiring Diagrams Model PH-16 Headset General Description PH-16 is a monaural headset with a noise canceling dynamic microphone. The PH-16 is designed to fit under a helmet with an environmental protection agency noise reduction rating (NRR) of 24 dB. The headset cord is terminated with a 4 pin XLR female connector. Design Features Specifications The dynamic receivers have special mountings which resist shock, vibration and acoustic feedback. The ear cups are foam lined for added noise attenuation. The vented, foam-filled ear cushions combine comfort with good acoustic seal. The receivers and ear cushions are field-repairable. The headband has two adjustments: the behind-the-head portion adjusts the pressure of the ear cups against the head, and is adjustable simply by applying pressure to the headband springs while wearing the unit; the over-the-head portion provides adjustment for different head sizes, and consists of mating hook and pile straps. The headset features a boom arm with a sealed ball-and-socket joint and flexible boom for precise microphone placement. The microphone cordage is completely concealed and protected within the boom arm. Receivers: Type: Dynamic Input Impedance: 300 Ohms at 1 kHz Frequency Response: 350 Hz to 3.0 kHz Sensitivity: 103dB (1mW @ 1 kHz input at max. volume setting) Microphone: Element Type: Noise-cancelling dynamic Output Impedance: 150 ohms Frequency Response: 100 Hz - 8 kHz Sensitivity: -83 dB (ref.: 0 dB = 1 v/bar Matching Impedance: 50-600 ohms Cordage: Straight cord Approximately 5 ½’ (-101) Coiled cord (optional) Connectors: 4 pin XLR female Weight: Gross Weight: Approx. 20 oz. (567 grams) Color: Non-reflective satin black SHLD N/C SHLD SHLD GRN BLK RED + BLK OVERHEAD CORD 1 BLK MIC RED N/C RED BLU BLU WHT WHT OVERHEAD CORD 2 GRN RECEIVERS 4 3 70770-100/-101 GRN RED + 5 7 9 12 12 8 20 17 A 4 10 11 14 3 6 2 21 23 13 25 1 18 22 10 15 19 A 21 3 7 5 15 in. (381 mm) Overhead Cord Qty Item Part # Driver 1 13 70805-003 Coiled Cord Assy. W/Connector 1 700262-000 Bracket 1 14 63456-010 Strain Relief 1 3 51856-007 Plastite Screw, 6-19 x 3/8 6 15 54462-000 Terminal 1 4 70381-000 Boom Stop 1 16 53105-000 Pin Receptacle 4 5 70451-001 Cushion Assy. 2 17 71115-002 Flex Boom 1 6 70762-000 Acoustic Foam 2 18 800062-002 Dynamic Microphone Assy. 1 7 70802-000 Driver Cover 2 19 51845-018 Screw, Pan Head, Phillips, 2-56 x 1/8 2 8 58632-000 Headband Strap Assy. 1 20 60051-277 Cord Unit 1 9 58632-001 Headband Strap Assy. 1 21 70754-011 Overhead Cord, 2’ 1 10 63451-003 Ball Half 2 22 70812-000 Strain Relief 2 11 70811-000 Ball Joint Spring 1 23 52888-003 Retainer 2 12 51856-610 Plastite Screw, 6-19 x 5/8 4 24 70805-008 Straight Cord 1 Item Part # 1 590175-001 2 Description Description Qty ORDERING INFORMATION PH-16 Under-Helmet Headset · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Catalog no. 70770-101/100 ® 38109-701 Rev C 08/01
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