Samsung 308 free download

File name NX308.pdf

SAMSUNG TELECOMS Publication Information Samsung Telecoms reserves the right without prior notice to revise information in this publication for any reason. Samsung Telecoms also reserves the right without prior notice to make changes in design or components of equipment as engineering and manufacturing may warrant. Copyright 1998 Samsung Telecoms All rights reserved. No part of this manual may be reproduced in any form or by any means - graphic, electronic or mechanical, including recording, taping, photocopy or information retrieval system - without express written permission of the publisher of this material. NOVEMBER/98 Contents Introduction General Description System Overview Specifications 6 9 3 Installation Installation Requirements Site planning Electrical specifications Installation Procedure Mounting the KSU Grounding the KSU Connecting keysets Connecting single line telephones Internal music source External music source connections External system paging connections Connecting door phone and lock control Connecting PSTN lines Power Failure Transfer AC power connection Connecting system back-up battery Memory protection Installing surge protection equipment Before power on Figures KSU Layout KSU Dimensions Figure 3 KSU Connection Table Figure 4 Base Board Switch Locations Figure 1 Figure 2 12 12 14 14 17 17 19 20 20 20 21 21 22 22 22 23 23 13 15 16 18 System Programming Levels of Programming Station User (Customer) Technician Programming Procedures 26 26 26 27 28 52 MMC Index 1 This page is intentionally blank 2 Instroduction This page is intentionally blank 4 GENERAL DESCRIPTION 5 System Overview System Operation NX-308 system is a stored-program-controlled electronic key/hybrid telephone system ready to use as soon as it is turned on. A powerful 8031 microprocessor operating at 11.059 MHz digitally controls all speech paths and system functions. The operating program with default memory is stored in nonvolatile ROM, 27512. Customer data is stored in RAM, 62256, and protected by a Ni-Cd battery for up to thirty days' continuous loss of system power. When AC power is restored, the Ni-Cd battery is recharged. There is a maximum capacity of three (3) telephone lines and eight (8) stations of which six (6) stations can be easily selected as keysets and single line telephones. Comprising only a key service unit (KSU), electronic keysets and conventional single line telephones, NX-308 offers small business users flexibility and control of telephone communications. System Configuration NX-308 system comprises a KSU, proprietary electronic keysets, conventional single line telephones, proprietary door phones, and conventional additional feature equipment. The plastic-cased KSU provides all the powerful features itself, making for easy, convenient installation and maintenance. The KSU is equipped to operate three (3) telephone lines and eight (8) stations. Sta