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Clear-Com PL-PRO EF-1M, Instruction Manual

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Clear-Com PL-PRO EF-1M Instruction Manual Download Page 42

5 - 8

  E F - 1 M   I N T E R F A C E

BILL OF MATERIALS 

EF-1M PCB

CAPACITORS
Value

Type

Volts

   Tol.

Part#

Designator

1

uF

Aluminum NP

50V

10%

150002

C35

.01

uF

Ceramic Disc

1.4KV

20%

150029

C61

220

uF

Aluminum

50V

150037

C48 C52

2700

pF

2700PF PLY     

50V

2.5%

150086

C14

4.7

uF

Aluminum NP

50V

150087

C31

22

pF

Ceramic Disc SMD

50V

5%

151116

C36

39

pF

Ceramic Disc SMD

5OV

5%

151119

C39

47

pF

Ceramic Disc SMD

50V

5%

151120

C21 C22 C43 C63

100

pF

Ceramic Disc SMD

50V

5%

151124

C32 C62

150

pF

Ceramic Disc SMD

50V

5%

151126

C34

220

pF

Ceramic Disc SMD

50V

5%

151128

C15 C40 C64-C67

470

pF

Ceramic Disc SMD

50V

5%

151132

C9 C24 C26

820

pF

Ceramic Disc SMD

50V

5%

151135

C7 C33 C45

.0047

uF

Ceramic Disc SMD

50V

10%

151156

C8 C10 C29

.01

uF

Ceramic Disc SMD

50V

10%

151160

C19 C23 C30 C42 C47

.047

uF

Ceramic Disc SMD

50V

10%

151168

C12 C27 C37

.1

uF

Ceramic Disc SMD

50V

10%

151172

C11 C13 C17 C18 C20 
C68

.22

uF

Ceramic Disc SMD

 50V

10%

151176

C38 C44 C46

..47

uF

Tantalum SMD

 35V

10%

151184

C6 C16 C50 C54 C55 
C56 C57

Summary of Contents for PL-PRO EF-1M

Page 1: ...I N S T R U C T I O N M A N U A L EF 1M INTERFACE...

Page 2: ...08 3505 U S A Clear Com is a registered trademark of Clear Com Intercom Systems The Clear Com Logo is a registered trademark of Clear Com Intercom Systems Matrix Plus is a registered trademark of Clea...

Page 3: ...Port 2 1 Converting a Party Line Channel to 4 Wire Audio 2 3 Front Panel Controls 2 7 Rear Panel Settings and Connectors 2 9 INSTALLATION 3 1 Connecting the EF 1M Interface 3 1 Connecting the EF 1M to...

Page 4: ...eshooting Tips for Nulling 3 9 Internal Adjustments 3 10 TRANSMISSION METHODS 4 1 Direct Connection 4 1 Fiber Optic 4 2 Other Methods 4 4 MAINTENANCE 5 1 Troubleshooting Tips 5 1 Block Diagram 5 6 Com...

Page 5: ...E F 1 M I N T E R F A C E i i i CLEAR COM LIMITED WARRANTY 8 1 Factory Service 8 2 Warranty Repair 8 3 Non Warranty Repair 8 3...

Page 6: ...i v E F 1 M I N T E R F A C E...

Page 7: ...the other interfaces being used fiber optic direct connection to another EF 1M etc Take care to wire to the correct pin assignments including selection of Clear Com or RTS type operation Follow the ma...

Page 8: ...rpiece and set the null for each location using the procedure described in Adjusing the Null in Chapter 3 Adjust the null on other stations and beltpacks if required 9 Adjust send and receive levels a...

Page 9: ...MX 2 frame port Please read this manual completely to better understand the EF 1M Interface For questions not addressed in this manual contact your dealer distributor or Clear Com directly Our applica...

Page 10: ...provides the same function as the CCI 22 Interface with the following exceptions the EF 1M supports only one channel the EF 1M also supports the 20 kHz call signal protocol the EF 1M is a stand alone...

Page 11: ...s converted to go over the chosen transmission medium it must be reconverted to 2 wire mode to properly connect to the party line system or station at the other end of the line The EF 1M obtains its D...

Page 12: ...interfaced through a TW 40 Interface The EF 1M allows the people on the first PL system to communicate with the people on the walkie talkies over a kilometer of fiber with the call signal determining...

Page 13: ...owing scenario The three Channel A ports of an MS 232 main station are each connected to an EF 1M For an illustration see Figure 4 Each of those three is in turn connected to a fiber optic modem and s...

Page 14: ...must accept line level 15 dBV to 4 dBV 4 wire audio and if call signal is desired RS 422 data Figure 4 Six EF 1M units link various locations to a single channel EF 1M EF 1M PK 5 3 DB15 3 DB15 3 3 EF...

Page 15: ...wire intercom the system connected to this EF 1M to the audio out of the 4 wire I O This control has a range of 12 dB Local Receive controls the audio signal level from the audio in of the 4 wire I O...

Page 16: ...r modes The first three relate to call signal data 1 ON Either a successful data link has been established with a remote EF 1M unit or the Matrix Direct mode has been selected at the local EF 1M unit...

Page 17: ...her Switch 1 adjusts the EF 1M s connector settings for use with either 4 wire fiber the ON position or a matrix intercom the OFF position Switch 2 adjusts the EF 1M s connector intercom levels for us...

Page 18: ...line channel must have one but only one termination See Figure 7 on page 3 4 DB 15 Connector When mode switch 1 is set to 4 wire mode OFF the DB 15 connects to additional interfaces or converters or t...

Page 19: ...he unit to respond to 20 kHz call signal instead of DC voltage and adjusts audio levels for connection to RTS TW lines There are also connections for audio and data shields if present in the wiring RJ...

Page 20: ...when the unit is being nulled 2 Connect a CAT 3 CAT 5 or above cable from the RJ 45 Matrix connector on the back panel of the EF 1M to a port RJ 45 on the Matrix frame The EF 1M is powered from the 2...

Page 21: ...g pins 8 and 15 of the DB 15 connector on the EF 1M s back panel will also select the 20 kHz call signal and adjust audio levels for connecting to RTS TW lines When you short pins 8 and 15 set mode sw...

Page 22: ...the appropriate connectors follow these steps to connect the EF 1M to a modem 1 Connect the local party line channel to the EF 1M s rear panel 3 pin XLR connector 2 Check to see that the EF 1M is rec...

Page 23: ...Wire Audio Input to Party Line 4 Wire Audio Output from Party Line 4 Wire Audio Input to Party Line 4 Wire Audio Output from Party Line Not Used 30 VDC Power Intercom Ground Intercom Line XLR F Jump f...

Page 24: ...a pin channel reversal would result in no power supplied to the EF 1M The audio channel carried on pin 2 of a TW line Clear Com or RTS will not be connected through the EF 1M however it will not be ne...

Page 25: ...F 1M units RTS and Clear Com for example the controls may need to be adjusted outside of the normal range Otherwise more extreme settings could indicate a problem elsewhere in the system Level setting...

Page 26: ...The null circuit is effective on line lengths from 2 feet to 4 000 feet from 1 64 m to1220 m with impedances in the range of 120 350 Ohms and can reduce local audio in the received signal by more tha...

Page 27: ...until the tone is at its minimum 4 Adjust the L control until the tone is at its minimum 5 Adjust the C control until the tone is at its minimum 6 Because these controls interact with each other you...

Page 28: ...y that there is a problem in the external party line With a Clear Com party line connected the L should be slightly to either side of the mid pot position The C control compensates for cable capacitan...

Page 29: ...this procedure a 2 Phillips screwdriver a 3 16 in nut driver and a flat bladed screwdriver with a blade width of approximately 075 in 1 9 mm To remove the cover of the EF 1M unit 1 Disconnect all cabl...

Page 30: ...position plug it onto only one of the pins Table 2 P3 and P4 jumper settings 8 For reassembly reverse steps 1 through 6 NOTE The potentiometer R13 is used to factory tune the 20 kHz call signal detec...

Page 31: ...ng connections Figure 8 Twisted Pair Wiring 14 13 RS 422 Receive RS 422 Receive 6 5 RS 422 Transmit RS 422 Transmit 14 13 RS 422 Receive RS 422 Receive 6 5 RS 422 Transmit RS 422 Transmit DB 15 Pins D...

Page 32: ...here is no susceptibility to electromagnetic interference Fiber optic cable is much lighter and more space efficient than copper even for a single channel Transmission distance in many cases can be su...

Page 33: ...ular type of multimode fiber optic modem over shielded pair cable Figure 9 Shielded Wiring 1 2 3 4 5 6 1 2 3 4 5 6 J1B J1A Pin 1 J1A J1B 1 2 3 4 5 6 9 10 11 12 13 14 RS 422 Receive RS 422 Receive RS 4...

Page 34: ...d use Clear Com has found that the FiberOptions 249B series multimode single channel works well for most single channel applications Range is up to 2 5 km 1 55 miles with negligible signal loss at 1 k...

Page 35: ...NG TIPS Symptom Cause Solution Squealing feedback levels too high distortion call signal stays on The local PL channel is not terminated Check termination switches on PL equipment and set appropriatel...

Page 36: ...s Levels don t match from one end to the other 1 Additional level adjustments may be available on the modems 2 Clear Com RTS jumper is set incorrectly 1 Always begin a setup with these set to their no...

Page 37: ...2 Baud rate or other modem requirements not compatible with EF 1M 3 The EF 1M units are set to different baud rates 4 One EF 1M is set to Matrix Direct Mode when connected to another EF 1M 1 Adjust wi...

Page 38: ...ocal PL problem 2 DB 15 is wired incorrectly at other end This will happen if an RTS TW channel is connected at one EF 1M and a Clear Com is connected at the other but the DB 15 on the RTS end has not...

Page 39: ...mers connected across the intercom channel or other PL equipment issues such as termination 2 Too many EF 1M units on channel 1 Verify operational status of PL equipment 2 Remove EF 1M units from the...

Page 40: ...Null 4 Wire Output Gain Adj Gain Adj Microprocessor C C Call Send Receive Intercom Line TW Power Splitter Power 20 kHz Call 200 Hz Null 20 kHz Call Receive RS 422 Send RS 422 Receive Nulling Earphone...

Page 41: ...E F 1 M I N T E R F A C E 5 7 COMPONENT LAYOUT Figure 11 EF 1M PCB Component Layout Drawing...

Page 42: ...50V 5 151120 C21 C22 C43 C63 100 pF Ceramic Disc SMD 50V 5 151124 C32 C62 150 pF Ceramic Disc SMD 50V 5 151126 C34 220 pF Ceramic Disc SMD 50V 5 151128 C15 C40 C64 C67 470 pF Ceramic Disc SMD 50V 5 15...

Page 43: ...1 411197 R1 22 1 OHM 1 10 SMD 1 411230 R7 56 2 OHM 1 10 SMD 1 411269 R12 100 OHM 1 10 SMD 1 411293 R10 150 OHM 1 10 SMD 1 411310 R77 R83 R91 R92 R93 R94 332 OHM 1 10 SMD 1 411343 R24 R17 432 OHM 1 10...

Page 44: ...47 5K OHM 1 10 SMD 1 411550 R15 R25 R36 R40 R56 R58 R65 R66 R67 R82 R86 56 2K OHM 1 10 SMD 1 411557 R57 100K OHM 1 10 SMD 1 411581 R18 R23 R27 R31 R32 R33 R35 R39 R44 R47 R48 221K OHM 1 10 SMD 1 41161...

Page 45: ...AD 481050 IC7 ANALOG SW Diode 5 1V 5 ZENER 1 4W SMD 481061 D6 Transistor MPSA64 DPNP 30V 500MA SMD 481075 Q7 IC 567 PLL SMD 481081 IC Transformer 600CT 600CT 560018 T1 IC ASSY EF 1M FIRMWARE 710541 IC...

Page 46: ...interface is present Four wire audio A single shielded pair or twisted pair cable carries audio in one direction only Hybrid A circuit that converts between 4 wire audio and 2 wire audio and contains...

Page 47: ...which control an intercom system The circuit cards connect to external intercom devices stations interfaces 4 wire audio through the RJ 45 connectors on the back panel Each RJ 45 connector is called a...

Page 48: ...alogous to a telephone conference call with its full duplex talk and listen communication PL Abbreviation for Party Line RS 422 A balanced asynchronous data connection Sidetone The sound of your own v...

Page 49: ...imum Impedance Greater than 10k Ohms bridging Call Signal Clear Com Mode Input Threshold 4 Volts DC on audio line Output Level 11 Volts minimum on audio line Call Signal RTS Mode Input Output 20 kHz N...

Page 50: ...tors 1 RJ 45 1 XLR female 1 DB 15 1 8 in 3 17 mm 1 phone jack on front panel Power DC Voltage 24 32 VDC powered by intercom line DC Current Requirement with Data 60 mA DC Current Requirement without D...

Page 51: ...with their serial numbers removed or defaced are not covered by this warranty This warranty is the sole and exclusive express warranty given with respect to Clear Com products It is the responsibility...

Page 52: ...____________State _____ZIP ___________________ FACTORY SERVICE Do not return any equipment to the factory without first obtaining a return authorization number All equipment returned for repair must b...

Page 53: ...air must be sent prepaid and will be returned prepaid NON WARRANTY REPAIR Equipment that is not under warranty must be sent prepaid to Clear Com If requested an estimate of repair costs will be issued...

Page 54: ...NOTES...

Page 55: ...NOTES...

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