
Lucent Technologies Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No
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Copyright 2000 Lucent Technologies Inc.
All Rights Reserved
June 2000
PB00-074ALC (Replaces PN98-107ALC, PN98-108ALC, and PN99-008ALC)
For additional information, contact your Microelectronics Group Account Manager or the following:
INTERNET:
http://www.lucent.com/micro
E-MAIL:
docmaster@micro.lucent.com
N. AMERICA:
Microelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286
1-800-372-2447
, FAX 610-712-4106 (In CANADA:
1-800-553-2448
, FAX 610-712-4106)
ASIA PACIFIC: Microelectronics Group, Lucent Technologies Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256
Tel. (65) 778 8833
, FAX (65) 777 7495
CHINA:
Microelectronics Group, Lucent Technologies (China) Co., Ltd., A-F2, 23/F, Zao Fong Universe Building, 1800 Zhong Shan Xi Road, Shanghai
200233 P. R. China
Tel. (86) 21 6440 0468
,
ext. 325
, FAX (86) 21 6440 0652
JAPAN:
Microelectronics Group, Lucent Technologies Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan
Tel. (81) 3 5421 1600
, FAX (81) 3 5421 1700
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Data Requests: MICROELECTRONICS GROUP DATALINE:
Tel. (44) 7000 582 368
, FAX (44) 1189 328 148
Technical Inquiries: GERMANY:
(49) 89 95086 0
(Munich), UNITED KINGDOM:
(44) 1344 865 900
(Ascot),
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(Helsinki),
ITALY:
(39) 02 6608131
(Milan), SPAIN:
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(Madrid)
Product Brief
June 2000
Ringing, Tip/Ring, and Line Card Access Switches
L7581/2/3 and L8581
Application
12-2366d F
CROWBAR
PROTECTION
R1
R2
TIP
RING
SW9
TEST OUT
SW8
RINGING
ACCESS
SW3 BREAK
BREAK SW4
RING
TIP
BATTERY
FEED
RING
GENERATOR
BATTERY
SCR
AND
TRIP
CKT
V
BAT
(REFERENCE)
RINGING
TEST RETURN
SW5
SW1
TEST IN
SW7
RINGING
RETURN
SW10
TEST OUT
RINGING TEST
SW6
SW2
TEST IN