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44443-1098 <90-00059>

 P

AGE

 13

TECHNICAL SPECIFICATIONS

DESCRIPTION

Impedances

2-Wire
4-Wire

Insertion Loss

600 ohm, 2-Wire
900 ohm, 4-Wire

Frequency Response

Return Loss, 2-Wire, 600 & 900 ohm

250 Hz to 500 Hz

500 Hz to 1000 Hz

1000 Hz to 2500 Hz
2500 Hz to 3400 Hz

Trans-hybrid Loss

A & B Lead Current
Test Jacks

Input Voltage Range
Input Power Requirements

(Option -01 ILT relay only)

Heat Dissipation (during relay
operation, -01 option only)

Physical Dimensions

Weight

-00

-01

Operating Temperature Range

VALUE

600 or 900 ohm in series with 2.15 uFd capacitor
600 ohm +5%

4.5 dB, nominal, mid-range
4.3 dB, nominal, mid-range

250 Hz to 3400 Hz +0.3%

Greater than 20 dB

Greater than 30 dB

Greater than 35 dB
Greater than 30 dB

Greater than 45 dB, 250 Hz to 3400 Hz

100 mA max. with no performance degradation
0.177" Dia. (“Bantam” size); 4W XMT, 4W RCV,

2W MON, 2W IN

-21 TO -56 VDC
15 mA max. @ -24 or -48 VDC, nominal

(no current in idle state)

1.1 Btu/Hr

1.4" x 6.0" x 5.6"

1 lb. 4 oz.

1 lb. 5 oz.

0° to 60° C.

Summary of Contents for 44443

Page 1: ...Technical Reference TR NWT 000870 Copyright 1998 by Dantel Inc Dantel is a registered trademark of Dantel Inc ISO 9001 Registered Printed in the U S A INSTALLATION OPERATION MANUAL 44443 1098 90 00059...

Page 2: ...et applications The 44443 Term Set is a plug in printed circuit module that fits into any 400 type or similiar equipment housing The 44443 00 is a passive device which requires no supply voltage The 4...

Page 3: ...3 S3 1 S3 4 S3 5 S3 6 T GND T R J2 4W RCV 5 4 3 1 2 4 WIRE RECEIVE OUT 6 COM 1 IN 5 600 900 10 12 600 900 7 9 11 S1C S1A 8 T1 900 600 S2C 1 6 2 3 4 5 600 900 19 27 T2 900 600 S2A 600 900 S2B 7 9 11 12...

Page 4: ...The voice signal at the secondary of T2 is attenuated by a 600 ohm switchable pad and applied to pins 55 and 49 at the 4 wire XMT port Receive Mode In the receive mode a voice frequency entering pins...

Page 5: ...inates the need for a resistive voltage drop for 24 or 48 VDC supplies Idle Line Termination Circuit When K1 is energized the normally closed side of K1A opens and the 600 ohm ILT branch is disconnect...

Page 6: ...NEJACK PABX LINE STATION SELECTOR 49018 DTMF DECODER 44020 BUSY TONE GENERATOR J3 TIP RING REVERSED SWITCH DROP LINE Fig 2 shows a 44443 Term Set as part of a 00331 DTSS3ON Order Wire PABX Interface T...

Page 7: ...Strap Options Set the switches and straps using Fig 3 and Table A FIG 3 44443 TERM SET SWITCH AND STRAP LOCATIONS 44443 XX TERM SET A11 44443 00 RCV ATTEN dB OUT IN OUT IN 4 WIRE LINE XMT RCV 2 WIRE...

Page 8: ...to ILT ILT Bypass IN Load Strap to ES ILT Bypass IN Load Strap to OUT Wiring Normally the 44443 is used in a shelf that is pre wired at the factory Fig 4 shows the edge connector pin designations if...

Page 9: ...15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CIRCUIT SIDE OF PC BOARD COMPONENT SIDE OF PC BOARD 4W XMT D Lead 4W XMT 2W R B Lead A Lead 2W T Ground ILT Relay Positive Input 01 only G Lead ILT Relay Negative...

Page 10: ...dBmO Measure minimum tone level Adjust S3 1 thru S3 6 for minimum level ACTION Remove Term Set and insert extender card in its place Insert Term Set into extender card When aligning 01 energize ILT r...

Page 11: ...cts to the output of the Term Set Echo Suppression Override Idle Line Termination Applications The 44443 01 features a relay activated echo suppression branch across the 4 wire XMT port This circuit i...

Page 12: ...cturer s authorized agent 5 When the installation of this device requires connection or changes to the internal wiring of registered telephones or other registered devices such changes and connections...

Page 13: ...Dissipation during relay operation 01 option only Physical Dimensions Weight 00 01 Operating Temperature Range VALUE 600 or 900 ohm in series with 2 15 uFd capacitor 600 ohm 5 4 5 dB nominal mid range...

Page 14: ...n instrument signed by a duly authorized officer of the Seller and accepted by the Buyer Warranty and remedies on products not manufactured by the Seller are in accordance with warranty of the respect...

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