ETS SM6-M2 Instructions

The SM6-M2 is a 2 microphone expanded coverage (50 feet) complete stand-alone audio monitoring system. The SM6-M2 can be used independently or with a CCTV system. The SM6-M2 also easily connects to recording equipment such as DVRs, linear time-lapse VCRs and audio tape recorders. SM1 Microphone Placements. Locate the SM1 microphones near the areas of interest in the rooms to be monitored. If the entire room is to be monitored, locate the SM1s in the middle of the room spread equally apart. Do not mount the microphones near air conditioning vents, light fixtures or electrical equipment. The SM1s should be placed at least 5 feet away from the subject(s) to be monitored. The SM1s are still useable in the range of 15-25 feet but is dependent on the level of background noise in the areas. Experimentation in the environment will determine what distances work best. SM1 Mounting To flush mount the SM1s on ceilings or walls, cut a 2¼” by 2¾ “ hole in the wall or ceiling tile to allow room for the circuit board and mount the SM1s to the surface with screws. For surface mounting, purchase the ETS SM1-LE omni-directional microphones or use single gang electrical boxes. Cable Runs Run 3 22 gauge, stranded, two conductor shielded cable between the SM3 amplifier, SMM2 mixer and the SM1 microphones. Keep the cable run distances under 1,000 feet and away from AC power sources, light fixtures and electrical equipment. See Figure 1 for connection diagram. SMM2 Mixer location The SMM2 can be located any place in the system, whether it be close to the microphones or near the SM3 base station. The SMM2 used in this application, does not require an AC adaptor connected to the 12Vdc input jack because it is supplied power from the SM3 base station’s microphone input. SM3 Recorder switch If the SM6 kit will be used with a recorder of some type, place the recorder switch in the “IN” position. In this position, both live audio and playback audio can be heard through the SM3s internal speaker. In stand alone applications where there is no recorder or no need to playback recordings, place the recorder switch in the “OUT” position. SM3 Headphone jack Plug in a set of 3.5mm stereo headphones for private listening. The internal speaker of the SM3 will be automatically disabled until the headphones are unplugged. Adjusting the SM1 Gain Start with a midrange setting of the gain control on the SM1. Adjust the control + or – for maximum clarity. If the sound at the amplifier is distorted, rotate the control towards the – mark (counter- clockwise). If the volume at the amplifier is too low, rotate the control towards the + mark (clockwise). Setting the SM1 Jumpers The SM1 microphone has jumper selectable treble boost and limiter circuits. The treble boost circuit when jumpered in, emphasizes the high frequency sounds that the microphone picks up. This is useful for improving the sound quality on slow speed tape recordings (VCR time-lapse recordings). The limiter circuit, when jumpered in, automatically keeps the SM1’s output at a relatively constant level. This eliminates the need for the listener to reduce the volume control on the amplifier when sounds get louder.

circuit. Most tape recorders have limiter circuits. The recommended jumper settings are as follows: Stand-alone Application Tape Recorder Application Limiter “IN” “OUT” Treble Boost “OUT” “IN” Caution It may be against the law to install this microphone kit in certain environments. It may also be against the law to record conversations of the person(s) being monitored without their knowledge. It is the responsibility of the installation company and end-user to determine if the application of this product is legal. These laws vary from state to state. If you are not informed on these matters, consult a qualified attorney or contact the appropriate state agency. A sticker is provided with this kit for the applications where notification must be posted. Warranty All ETS products carry a one year parts and labor warranty. This warranty does not cover damages as a result of misuse, improper handling of the unit or exposure to extreme temperatures or moisture. At its discretion, ETS reserves the right to repair or replace this unit under the conditions of the warranty. If you experience problems with your equipment call ETS at: 505-888-3923 to obtain a return authorization number. Equipment requiring repair beyond the warranty period or units that have been damaged or are not covered under the warranty can be repaired by ETS for a minimal cost under most conditions. Made in the USA By