background image

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

TM

 Technical Reference # TR-NWT-000870.

Copyright 1997 by Dantel, Inc. • Dantel is a registered trademark of Dantel, Inc. • ISO 9001 Registered

Printed in the U.S.A.

I

NSTALLATION

 & O

PERATION

 M

ANUAL

49213-1297 <90-00094>

49213 202 M

ODEM

S

UBASSEMBLY

About this Practice:

This practice has been reissued to:
• Meet ISO 9001 requirements.

Issue date:  December 1997

Reissued Practices: Updated and
new content can be identified by a
banner in the right margin.

UPDATED

Table of Contents

Ordering Information ...........................................................................  2
General Description..............................................................................  2
Circuit Description ...............................................................................  2
Installation............................................................................................  4
Operation ..............................................................................................  6
Technical Specifications .......................................................................  7
Warranty ...............................................................................................  8

Summary of Contents for 49213

Page 1: ...tive fields For more complete information on electrostatic discharge safety precautions refer to BellcoreTM Technical Reference TR NWT 000870 Copyright 1997 by Dantel Inc Dantel is a registered tradem...

Page 2: ...Block 46210 ACB CIRCUIT DESCRIPTION Fig 1 shows the 49213 202 Modem Subassembly functional schematic Subassembly input tones RXD appear at pins 3 and 4 of connector P10 The tones couple to the subass...

Page 3: ...R and S of the 46210 AB or 46220 ACB wire wrap terminal FIG 1 FUNCTIONAL SCHEMATIC 49213 CIRCUIT DESCRIPTION P8 3 P8 10 P8 1 P8 2 P8 9 P8 12 P8 4 P8 7 P8 11 P8 5 P8 8 P10 7 P10 8 P9 2 P9 3 P9 4 DCD CT...

Page 4: ...or 46220 ACB connectors Make sure the pins go straight into the sockets Reinstall the screws 2 Set the straps Refer to Fig 5 Set the X1 straps With the straps placed across pins 2 3 and 4 5 you can ad...

Page 5: ...3 1297 90 00094 PAGE 5 FIG 3 PULLING DOWN THE POWER SUPPLY AND CPU BOARDS FIG 4 SUBASSEMBLY LOCATION ON POWER SUPPLY BOARD F1 TB1 P1 S1 S2 S3 AUX LED 1 3 48 ALM GND RS 232 OR 202 SUBASSEMBLY INSTALLAT...

Page 6: ...hm dB meter bridged to pins J and K XMT of wire wrap terminal column 32 The dB meter should not be termi nated with 600 ohms 4 Open the 46210 AB or 46220 ACB Refer to Figs 2 and 3 5 Place S1 in the TE...

Page 7: ...making adjustments by shorting pins R and S of column 32 FIG 6 OPENING PLASTIC COVER INSTALLATION TECHNICAL SPECIFICATIONS DESCRIPTION Input Voltage Max Input Current 5 VDC 5 VDC Max Heat Dissipation...

Page 8: ...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 respecti...

Reviews: