Clear-Com MS-232 Page 16 User Manual Download

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Miscellaneous

Device

Description

Part #

Designator

Inductor

100UH 2A

180010

Connector

1/4 IN STEREO JACK

210135

P11 J20

Connector

HEADER MULTI-PIN

210217

J3(6) P1 P3(3) P4(3) P7(3) P8(3)

Connector

JUMP JACK .1IN

210226

JP1 JP2

Connector

HEADER .156IN PIN

210234

J2(3)

Connector

3 PIN MALE

210245

P5 P6 P10 P12 P13 P14 P15

Connector

3 PIN FEMALE

210246

Connector

SINGLE ROW RT ANG HEADER

210253

JP1(3) JP2(3)

Connector

DUAL ROW HEADER 8 POS. .230IN

210276

P17

Connector

DUAL ROW HEADER 17 POS. .230IN

210279

P16 P22

Connector

DUAL ROW HEADER 7 POS. .320IN

210282

J25

Connector

7 POS DUAL ROW SOCKET .635 TALL

210349

J26

Relay

SPDT 24V MINI PC RELAY

450004

Pot

2K TRIMPOT H MTG.

470029

R161

Pot

50K TRIMPOT

470059

R193

Switch

DIP SWITCH PIANO 8 POS.

510110

Switch

DPDT R/A SLIDE SWITCH

510121

S12 S13

Transformer

600CT/600CT

560018

Cable

34 PIN FLAT, 2 CONN.

770018

J23

Clear-Com MS-232 Two-Channel Main Station

Summary of Contents for MS-232

Page 1: ...his function and an associated relay A balanced program input allows monitoring external audio using the headset or speaker This main station accepts dynamic headsets such as the Clear Com PL ProTM Series Individual side tone controls for each intercom channel allow the operator to vary the level of his her own voice as heard in the headset and speaker It also accepts Clear Com gooseneck panel mic...

Page 2: ...intercom opera tion set the Listen level controls for each channel to the desired level and press the Talk buttons when talking If a headset is used set the Sidetone control for each channel for the desired amount of side tone in the earphone If the Panel Mic and Speaker are being used set the sidetone controls for mini mum feed through to the speaker to prevent feedback Front Panel The controls i...

Page 3: ...le the Call button is pressed indi cating the presence of a Call signal on the line 3 Tone Alert An audible tone alert can be enabled to sound when a Call signal is received on either channel This can be useful when the operator s attention has been drawn away from the MS 232 indicator panel Press the Tone Alert button to alternately enable or disable the audible tone alert The green indicator nex...

Page 4: ...ogram audio level heard on the intercom There are three Program Level controls The Program Level knob to the left of the Speaker On Off switch adjusts the level of program heard in the headset or panel speaker The program levels heard on each intercom channel line can be individually adjusted but this is intended to be a one time setting made when the MS 232 is set up This is done using the screwd...

Page 5: ...audio feed to the Announce Output is enabled it is interrupted by the announcement Program audio feed to the Announce Output is selected by setting jumper JP2 on the Main board to the ON posi tion Optionally pressing the Announce button can also disconnect the selected headset or panel microphone audio from the intercom line s This option is controlled by the Interrupt Announce option switch 19 He...

Page 6: ...ation The default position of the switches is in the OFF up position The function of each switch is as follows 1 MOM TALK A Setting the Momentary Talk A switch to the ON position will disable the latching function of the Channel A Talk button In this mode the Talk button must always be held in continuously while the operator is talking on Channel A 2 MOM TALK B Setting the Momentary Talk B switch ...

Page 7: ...AC power cord to be used Voltages from 90 to 240 VAC at 50 or 60 Hz are acceptable The MS 232 will automatically adjust for the power applied so there are no manual switches to set power line voltage or frequency 21 Intercom Line Connection The MS 232 contains three 3 pin male XLR connectors for each intercom line These connectors are wired in parallel Any single channel station or channel of a mu...

Page 8: ...s balanced and transformer isolated It has a 600 ohm impedance and a nominal output level of 0 dBV A shielded twisted pair cable should be used in the cable wired to this connector 24 Relay Out A dry set of relay contacts is provided through a 1 4 inch jack to activate external switching as needed when the Announce button is pressed These contacts can be used to control an external device such as ...

Page 9: ...il the faulty line is located Once the short is removed the MS 232 will reset automatically and power will come back up within several seconds Check for shorts between pins 1 and 2 or improper cable wiring Clear Com MS 232 Two Channel Main Station 9 EQ LIM EQ LIM Headset Select Headset Mic Panel Mic Hot Mic Out Announce Announce Output Talk Int On Off Program Level A Sidetone Call Light Call Send ...

Page 10: ... com connector If this condition occurs it is because the system ground came into contact with something that was HOT with respect to the power supply earth ground Carefully check the system ground and AC distribution in the area WARNING THIS IS A POTENTIALLY DANGEROUS SITUATION A SHOCK HAZARD MAY EXIST BETWEEN A REMOTE STATION HEADSET AND GROUND Problem System feedback Acoustical Cause 1 Listen L...

Page 11: ... Designator 4 7K OHM 1 4 Carbon Film 5 410013 R300 10K OHM 1 4 Carbon Film 5 410016 R312 R313 36K OHM 1 4 Carbon Film 5 410163 R303 Diodes and Transistors Device Description Part Designator LED RED ROUND FLAT TOP LED 390044 LED301 LED303 LED GREEN ROUND FLAT TOP LED 390045 LED302 LED300 LED304 Diode 1N4148 SIGNAL 10MA 75PIV 480000 D301 Miscellaneous Device Description Part Designator Button FLAT T...

Page 12: ...h SPDT ON OFF ON 510120 S309 S310 Cord IEC POWER CORD 610022 Cable POWER ENTRY HARNESS 740063 Cable DC POWER CABLE MS 232 PS 464 740064 Cable ASSY CABLE HEADSET MS 232 740065 Cable ASSY CABLE PLUG IN MIC MS 232 740066 Speaker SPEAKER ASSY MS 232 740067 Cable RIBBON 3 CONN 770021 J16 J18 Cable RIBBON 16 PIN 770023 Clear Com MS 232 Two Channel Main Station 12 ...

Page 13: ......

Page 14: ...04 1 uF Tantalum 35V 20 150116 C63 01 uF Metal Film 100V 2 150122 C98 047 uF Mylar 100V 5 150131 C22 C39 C61 C64 C65 C66 C88 C105 100 uF Aluminum 35V 150136 C7 C8 C90 C91 C121 47 uF Aluminum NP 50V 150151 C24 C25 Resistors Value Power Type Tol Part Designator 10 OHM 1 4 Carbon Film 5 410002 R127 22 OHM 1 4 Carbon Film 5 410004 R107 R116 R199 220 OHM 1 4 Carbon Film 5 410007 R75 R146 R159 R194 R196...

Page 15: ... D8 D9 D11 D16 D19 D20 D21 D22 D26 D27 D33 D34 D43 D45 D46 D48 Transistor MPS A13 NPN 30V DARL 480004 Q11 Q14 Q15 Q16 Q17 Q18 Q19 Diode 1N5401 RECT 3A 100PIV 480005 D5 D6 Transistor MPS A63 PNP 30V DARL 480008 Q12 Q13 Diode 1N957B ZENER 6 8V 4W 5 480026 D12 D14 Transistor MPS A55 PNP 60V 480050 Q2 Q3 Q4 Q5 Q6 Transistor MPS A05 NPN 60V 480052 Q8 Q23 Diode 1N4003 RECT 1A 200PIV 480058 D2 D4 D10 D13...

Page 16: ...nector SINGLE ROW RT ANG HEADER 210253 JP1 3 JP2 3 Connector DUAL ROW HEADER 8 POS 230IN 210276 P17 Connector DUAL ROW HEADER 17 POS 230IN 210279 P16 P22 Connector DUAL ROW HEADER 7 POS 320IN 210282 J25 Connector 7 POS DUAL ROW SOCKET 635 TALL 210349 J26 Relay SPDT 24V MINI PC RELAY 450004 K2 Pot 2K TRIMPOT H MTG 470029 R161 Pot 50K TRIMPOT 470059 R193 Switch DIP SWITCH PIANO 8 POS 510110 S1 Switc...

Page 17: ...R214 47 5K C129 1uF C66 047uF R8 0 R130 2K R21 2 2K 1 2W R213 20K R186 4 7K C78 470pF R20 2 2K 1 2W R215 20K R211 47 5K R11 1K R187 20K Q10 TIP35 2 1 3 C56 47uF C105 047 R12 20K Q9 TIP35 2 1 3 IC21A DG444 3 1 2 13 4 5 12 R10 1K R105 120 C108 01uF J20 R217 6 8K R13 20K S12 SW SPDT R14 9 1K C104 0047uF R218 6 8K R144 15K S13 SW SPDT R15 9 1K R145 6 8K IC22A DG444 3 1 2 13 4 5 12 R6 1K Q19 MPSA13 3 2...

Page 18: ...001 8 9 10 IC13B 4013 9 11 13 12 8 10 D CLK Q Q S R S302 IC2B 4584 3 4 IC2C 4584 5 6 Q18 MPSA13 3 2 1 RP2 2 100K SIP IC2A 4584 1 2 Q15 MPSA13 3 2 1 S1 1 OPTION LED300 IC2D 4584 9 8 Q14 MPSA13 3 2 1 S1 6 OPTION R300 4 7K R44 470k D27 Q11 MPSA13 3 2 1 S1 5 OPTION IC4B 4001 5 6 4 Q16 MPSA13 3 2 1 S1 2 OPTION IC4A 4001 1 2 3 C46 01uF Q17 MPSA13 3 2 1 S1 4 OPTION S304 S1 3 OPTION IC10A 4556 2 3 1 4 5 6...

Page 19: ..._________ Date Purchased_____________________________ Purchased from dealer ______________________________________________________ Address___________________________________________________________________ City_________________________________State___________________Zip____________ Factory Service All equipment returned for repair must be accompanied by documentation stating your return address te...

Page 20: ...anced differential input Input Level 20 dBV Input Impedance 100 KΩ Frequency Response 150 Hz 18 KHz 2 dB TERMINATION IMPEDANCE Impedance 200 switchable Ω POWER SUPPLY Type Switching with overcurrent limiting and reset circuitry Output Voltage 30 volts DC Output Current 2 amps peak 1 75 amps max distributed over both channels Short Circuit Reset Time 15 sec Hum Noise 80 dBv STATION CAPACITY Capacit...

Page 21: ...ENTS 90 240 VAC 50 60 Hz 60 VA ENVIRONMENTAL 32 122o F 0 50o C DIMENSIONS 19 W x 1 75 H x 6 5 D 483 mm x 44 mm x 165 mm WEIGHT 5 0 lbs 2 75 kg NOTICE ABOUT SPECIFICATIONS While Clear Com makes every attempt to maintain the accuracy of the information contained in its prod uct manuals that information is subject to change without notice Performance specifications included in this manual are design ...

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Clear-Com MS-232, User Manual

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