Clear-Com MS-702

Specifications The Clear-Com MS-702 is a two-channel main station with a 1.2 ampere rack, individual channel short-circuit protection and a versatile intercom monitoring system. It supports two intercom channels with up to 40 beltpacks or 10 speaker stations. It has the excellent speech intelligibility of Clear-Com in high and low noise environments. Monitoring system The MS-702 can monitor intercom activity on one or both channels with individual listening level controls. Monitoring of intercom activity is possible through a headset or internal speaker. The high-sensitivity internal speaker provides intelligible communication in the typical active production environment. Speech Selection The MS-702 contains microphone preamps with limiters and speech modeling circuits for greater intelligibility. An individual momentary / lockable talk button is provided for each channel. These buttons are dark when locked - blue LED when in stand-by and amber colored LED when locked. Channels can be accessed separately or simultaneously without connecting them together. An optional gooseneck microphone is available. Ad Out For paging applications, the MS-702 provides a line-level balanced output signal to a 1/4 "TRS connector on the rear panel. The "Announce" button on the front panel activates the output and the Announce relay. A separate 1/4 "TRS connector is typically used to mute the control room monitors during live ads. Visual and Audible Signaling Visual call signaling attracts the attention of operators who have removed their headsets or turned off the speakers. Call buttons for each channel signal all stations on the party line, blinking brightly. Along with the visual signal, the station's loudspeaker will beep if the remote station operator holds the Call button for more than 2 seconds. Remote Mic Kill (RMK) The MS-702 is equipped with a global RMK button. It will disconnect the microphone talk circuits from all Clear-Com belts in the system, eliminating the odd noise from the "open" headset microphones. Program entry The MS-702 accepts an external line-level program input for monitoring in the headset and speaker, and / or mixing with intercom audio on one or both channels. When the Stop option is selected, the program signal is interrupted when the Talk button is pressed. Power supply and system protection The MS-702 provides visual indication of power supply conditions. In the event of a short circuit or over current in one channel, this channel will be turned off while the other will continue to operate. As soon as the fault condition is removed, the "auto-reset" circuit will restore the power to that channel - even under full load conditions. Simple setup The MS-702 connects to remote stations with a standard two-conductor shielded microphone cable. User selectable configuration DIP switches are provided on the rear panel. Clear-Com MS-702 Features: Supports up to 40 belt stations or 10 speaker stations on two channels and 12 headphones Separate short-circuit protection for each channel Momentary electronic double action / locking "talk" buttons Power program for both channels, with selectable "Program Interrupt" (IFB) "Call" signal buttons for each channel Global "Remote Mic Kill" Announce output with relay Limit the microphone Volume controls for each channel Visual and audible signaling "Tone Alert" A & B Channels "Link" Built-in speaker External switchable line termination on each channel Universal voltage supply for 100-240 VAC operation Clear-Com MS-702 Specifications: Panel microphone input Input type: Electret Input impedance:> = 2kohm Mic Limiter Threshold: 0dBu +/- 3dB Mic Limiter Range:> = 20dB Headphone microphone input Input type: Dyanmic Input impedance:> = 1k ohm Mic Limiter Threshold: 0dBu +/- 3dB Mic Limiter Range:> = 15dB Program Line In Maximum level before cutting:> = 20dBu Input impedance:> = 5k ohm Earphone output Load impedance:> = 8 ohms Output Impedance: <= 25ohms Limit Output Limiter: + 5dBu +/- 3dB Maximum output level before distortion:> = 17 dBu Speaker output Load impedance:> = 4 ohms Maximum output level before 1% Distortion: 20dBu +/- 2dBu Part line output Off Noise: <-74dBu Output Impedance:> 10k ohms Party line entry Crosstalk: <-60dB Maximum level before trimming:> = 12dBu Sidetona Null Capacity:> 25dB Balanced Line Output / Stage Type: Balanced Output impedance:> = 200 ohms Load impedance:> = 600 ohms IFB / Hot Mic Type: Unbalanced Output impedance: 180 ohms Load impedance:> = 600 ohms Frequency response Mic Panel - Party Line: 600-10kHz +/- 3dB HeadsetMic - Party Line: 200-12kHz +/- 3dB Headset Mic - Line Out: 200-12kHz +/- 3dB Program Entry - Party Line: 100-17kHz +/- 3dB Input Program -Headset Out: 200-10kHz +/- 3dB Program input - Speaker output: 300-10kHz +/- 3dB Party Line - Headset Out: 200-10kHz +/- 3dB Party Line - Speaker output: 300-10kHz +/- 3dB