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3 - 1 1

E F - 1 M I N T E R F A C E

6. Lift off the cover.
7. Make the necessary adjustments of jumpers P3 and P4 (shown in the following table).

To set a jumper to the closed position, plug it onto both pins. To set a jumper to the
open 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 detection

circuitry. It should be adjusted only by qualified personnel.

BAUD 1

BAUD 2

RATE

Open

Open 19.2

kBaud

Closed Open 9.6

kBaud

Open Closed

4.8

kBaud

Closed Closed 2.4

kBaud

Make the necessary

adjustments of jumpers

P3 and P4.

Содержание PL-PRO EF-1M

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 54: ...NOTES...

Страница 55: ...NOTES...

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