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About this Practice:
This document has been reissued to:
• Renumber figures.
Reissued Practices: Updated and
new content can be identified by a
banner in the right margin.
Issue date: October 1998
Copyright 1998 by Dantel, Inc. • Dantel is a registered trademark of Dantel, Inc. • ISO 9001 Registered
44443 F
T
ERMINATION
Table of Contents
Ordering Information ........................................................................... 2
General Description .............................................................................. 2
Circuit Description ............................................................................... 2
Application Information ....................................................................... 6
Installation ............................................................................................ 7
Operation ............................................................................................ 11
FCC Required Information ................................................................ 12
Technical Specifications ..................................................................... 13
Warranty ............................................................................................. 14
CAUTION
•
Install or remove modules from the shelf only when the power is off.
If you install a module in the shelf with the power on, the internal
circuitry may suffer damage and the product warranty will be void.
•
Remove and install circuit boards only in a static-safe environment
(use antistatic wrist straps, smocks, footwear, etc.).
•
Keep circuit boards in their antistatic bags when they are not in use.
•
Do not ship or store circuit boards near strong electrostatic, electromag-
netic, magnetic, or radioactive fields.
•
For more complete information on electrostatic discharge safety
precautions, refer to Bellcore
Printed in the U.S.A.
I
& O
NSTALLATION
44443-1098 <90-00059>
-W
OUR
S
44443-XX
TERM SET
RCV ATTEN (dB)
OUT IN OUT IN
4 WIRE LINE
XMT
RCV
XMT
RCV
2 WIRE DROP
XMT ATTEN (dB)
OUT IN OUT IN
A11-44443-00
Technical Reference # TR-NWT-000870.
TM
M
PERATION
ANUAL
IRE
ET
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Related Manuals for Dantel 44443
Summary of Contents for Dantel 44443
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Page 1: Table Of Contents
For more complete information on electrostatic discharge safety precautions, refer to Bellcore Technical Reference # TR-NWT-000870. Issue date: October 1998 Copyright 1998 by Dantel, Inc. • Dantel is a registered trademark of Dantel, Inc. • ISO 9001 Registered Printed in the U.S.A. -
Page 2: Ordering Information
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 44443- 01, while still a passive device, contains a relay. - Page 3 CIRCUIT DESCRIPTION . 1 - F , 44443-00/-01 F UNCTIONAL CHEMATIC ERMINATION 44443-1098 <90-00059>...
- Page 4 600 or 900 ohms. Optimum trans-hybrid loss is achieved by selecting the appropriate capacitance combination of the NBO. Also, an external NBO circuit may be connected to the Term Set through pins 7 and 13. Refer to Table A, in the Installation section. 44443-1098 <90-00059>...
- Page 5 44443-01 This module includes the basic Term Set network circuits of the 44443-00, plus selectable strap connections for engaging an Idle Line Termination (ILT) branch or Echo Suppression Override (ES) branch across the 4-wire XMT port. Refer to Fig. 1.
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Page 6: Application Information
APPLICATION INFORMATION ig. 2 shows a 44443 Term Set as part of a 00331 DTSS3ON Order Wire/PABX Interface. The 2-wire input of the Term Set may be connected to: ♦ A PABX. ♦ An outside line. ♦ Any other 2-wire communication line. -
Page 7: Installation
(if necessary), mounting the module in the shelf, and checking out the module. Switch and Strap Options Set the switches and straps using Fig. 3 and Table A. . 3 - 44443 T WITCH AND TRAP OCATIONS 44443-XX I.L.T. - Page 8 Both Inactive 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 wiring is required. Module Mounting Install the module in the proper slot in the equipment housing by sliding the module along the guide slots.
- Page 9 INSTALLATION . 4 - 44443 T ESIGNATIONS 4W XMT D Lead 4W XMT 2W R B Lead A Lead Ground 2W T ILT Relay Positive Input, (-01 only) G Lead ILT Relay Negative Input, (-01 only) F Lead Ground 4W RCV R...
- Page 10 Abbreviations: ♦ 600 T = Terminate in 600 ohm load. ♦ 600 B = Bridging Unloaded measurement using 600 ohm refer- ence scale (dBm). B - 44443-00/-01 C ABLE HECK ROCEDURE STEP ACTION RESULTS Remove Term Set and insert extender card in its place.
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Page 11: Operation
OPERATION here are no specific operating instructions for the 44443-00 and 44443-01 Term Sets. The module starts operation when signal is applied. 4-Wire RCV and XMT Line Attenuation Attenuation of the 4-wire RCV and XMT lines is adjusted by the DIP switches on the front panel. -
Page 12: Fcc Required Information
Installation of this equipment as an adjunct can be made only with permission of the owner of the host equipment. FCC required information pertaining to this module: Registration Number: DPH62Z-14478-WP-T 44443-1098 <90-00059>... -
Page 13: Technical Specifications
(no current in idle state) Heat Dissipation (during relay operation, -01 option only) 1.1 Btu/Hr Physical Dimensions 1.4" x 6.0" x 5.6" Weight 1 lb. 4 oz. 1 lb. 5 oz. Operating Temperature Range 0° to 60° C. 44443-1098 <90-00059>... -
Page 14: Warranty
To ensure expedient processing of your order, provide a purchase order number and shipping and billing information when requesting an RMA number. Also, when the units are returned to Dantel, include a descrip- tion of the failure symptoms for each unit returned. Send defective equipment to: Dantel, Inc.