COMSPHERE 3821Plus MODEM QUICK REFERENCE Document No.
Copyright 1998 Paradyne Corporation. All rights reserved. Printed in U.S.A. Notice This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express written permission of Paradyne Corporation, 8545 126th Ave. N.
TM COMSPHERE 3821Plus Modem Quick Reference Document Number 3821-A2-GL10-00 December 1998 Product Documentation on the World Wide Web We provide complete product documentation online. This lets you search the documentation for specific topics and print only what you need, reducing the waste of surplus printing. It also helps us maintain competitive prices for our products. Complete documentation for this product is available at www.paradyne.com.
Install the Carrier The 3821Plus card resides in a COMSPHERE 3000 Series Carrier. The carrier must be installed in a rack before the modem cards can be installed in the carrier. The 3821Plus card requires a Shared Diagnostic Control Panel (SDCP) for control and configuration of individual modems. It also requires a Shared Diagnostic Unit (SDU) if the modems will be under control of an NMS, or if the SDCP is used for more than one carrier.
Cable the NIM Connect one end of the short ribbon cable to the 50-pin connector at the bottom of the NIM. Connect the other end to P21 (on the right side of the carrier) or P22 (on the left side of the carrier). Connect a network interface cable to the 50-pin connector in the middle of the NIM. Connect the other end to the dial or leased-line interface. This may be an RJ11 gang box or a 66A-punchdown block.
Attach the DTE Interface Assembly The 8-slot DTE interface assembly can be mounted on the left or the right side of the carrier. If you are installing only one interface assembly, it must be mounted on the same side you installed the NIM. Procedure 1. Feed the eight tabs at the bottom of the DTE interface assembly into the slots on the left or right side of the carrier. 2. Insert the screws provided, but do not completely tighten them.
Install the Circuit Card Slide the 3821Plus card into its slot in the 3000 Series Carrier. Press firmly until the back edge of the card seats in the socket of the DTE interface assembly. 495-14797 Procedure 1. Turn the circuit pack lock until it is vertical, locking the 3821Plus card in place. 2. When all cards are installed and locked in place, tighten the screws on the DTE interface assembly.
Connect the DTE To connect the DTE to the modem, you can use two DB25 to 8-position modular adapters and an 8-pin RJ45-type modular cable instead of an RS-232 cable with DB25 connectors. Because of the large number of cables required for typical 3821Plus installations, the slimmer modular cable is recommended. The connectors on the DTE interface assembly are labeled, from top to bottom, A, B, and C. These markings show which modem on a card is associated with each connector. " Procedure 1.
Selecting Configurations Using the SDCP The SDCP’s Liquid Crystal Display (LCD) consists of two 16-character lines which display modem status, control functions, and configuration options as well as indicating your location in the Top-Level menu tree. To change the factory template for each modem using the SDCP, perform the following steps: Procedure 1. At the top level of the menu structure, select Modem A, B, or C by pressing F1, F2, or F3. 2. Press the key until Configure comes into view. 3.
Selecting Configurations Using AT Commands When using AT commands, the following criteria must be met: H Make sure the asynchronous DTE’s communication software is configured for 10-bit character format (for example, 8 data bits, no parity, and 1 stop bit). H Make sure the DTE (RS-232D) cable is attached to the DTE connector at the rear of the COMSPHERE 3000 Series Carrier, and to the correct serial communications port on the asynchronous DTE. H On initial power-up, the modem is in Command mode.
Menu Structure An elaborate menu of options is available from a Shared Diagnostic Control Panel (SDCP). (Modem Status) MDMA mdmb mdmc Status Call_Setup Test Configure Control Remote Security 495-14520-01 Modem Select Branch The Modem Select branch is the top level of the menu structure. The modem selections are displayed when the SDCP is first connected to a 3821Plus card (using the Select key on the SDCP). Idle : 33.
Call Setup Branch The Call Setup branch of the Top-Level menu allows you to dial, disconnect, and answer telephone calls. It also allows you to create and store up to 10 telephone numbers to directory locations.
Test Branch The Test branch of the Top-Level menu allows you to initiate various modem tests. Use these tests if you are having data communication problems, such as periodic character loss, random errors, or constant format errors. By the process of elimination, you can usually isolate the fault in your system.
Configure Branch After installing a 3821Plus modem, you set its software configuration options using either the SDCP or the AT command set. This section describes how to access and use the Configure branch of the Top-Level menu via the SDCP.
Control Branch The Control branch of the Top-Level menu allows you to manage hardware and software functions, such as speaker volume, reset, busy out, and firmware download. The 3821Plus modem has the additional hardware function, Service Line. To access Control from the Top-Level menu, press the Select Control. key until Control appears.
Security Branch The Security branch of the Top-Level menu allows you to change and save parameters that are critical to the dial access security password database. Most of the functions within this branch are protected by the Administration Password. Once the correct password is entered, these security functions appear on the modem’s LCD. The major functions that appear under the Security branch are Set Access Control and Reset Security.
AT COMMANDS AT COMMANDS (continued) Bold text indicates Async Dial factory defaults. Qn Q0 Result Codes Enables result codes. Refer to Result Codes section. Disables result codes. Enables originate modem to send result codes to the DTE. Required for most UNIX applications. AT Attention Command Prefix/Autobaud Rate. Indicates a command string has started and determines the DTE’s data rate and parity. Q1 Q2 A/ Repeat Last Command. Reexecutes last command string.
AT COMMANDS (continued) AT COMMANDS (continued) +FCLASS=n +FCLASS=0 +FCLASS=1 +FCLASS=2 &In &I10 &I11 • • &I32 &I99 &I100 Dial Transmit Level –10 dBm. –11 dBm. • • –32 dBm. ETC 1.0 (if ETC installed). ETC 1.1 (if ETC installed). &Jn &J0 Dial Transmit Level Type Modem sets dial transmit level to Permissive mode at –9 dBm. &Ln &L0 &L1 &L3 Leased-Line Mode Disables leased-line operation. 2-wire originate leased-line operation. 2-wire answer leased-line operation.
AT COMMANDS (continued) AT COMMANDS (continued) &Tn &T0 &T1 &T2 Tests Stops any test in progress. Starts a Local Analog Loopback test). Transmits and receives a 511 BERT pattern. Starts a Local Digital Loopback test. Accepts request from remote modem for a Remote Digital Loopback test. Denies request from remote modem for a Remote Digital Loopback test. Starts a Remote Digital Loopback test. Starts a Remote Digital Loopback test with a Pattern. Starts a Local Analog Loopback test with a Pattern.
AT COMMANDS (continued) \Qn Flow Control of DTE \Q0, \Q5, \Q6 Disables flow control of DTE. \Q1, \Q4 Enables XON/XOFF flow control. \Q2, \Q3 Modem raises and lowers CTS to start and stop flow control. \Qn Flow Control of Modem \Q0, \Q2, \Q4 Disables flow control of modem. \Q1, \Q5 Enables XON/XOFF flow control. \Q3, \Q6 Modem starts and stops flow control based upon state of DTE’s RTS signal. \Tn \T0 \Tn No Data Disconnect Timer Disables no data disconnect timer.
S-REGISTERS Register Description Factory Setting 1 Range S0 Auto-Answer Ring Number 0 (Disable) or 1–255 rings S2 AT Escape Character 43(+) 0–127 ASCII S3 Carriage Return Character 13 0–127 ASCII S4 Line Feed Character 10 0–127 ASCII S5 Backspace Character 8 0–127 ASCII S6 Blind Dial Pause 2 2–255 seconds S7 No Answer Time-out S8 45 1–255 seconds “,” Pause Time for the Dial Modifier 2 0–255 seconds S10 No Carrier Disconnect 2 0–254 (10ths of a second) or 255(Disable) S
S-REGISTERS (continued) Register Description Factory Setting Range S58 Remote Access Password 5th and 6th digits 00 00–99 S59 Remote Access Password 7th and 8th digits 00 00–99 S62 V.25bis Coding 0 0=ASCII; 1=EBCDIC S63 V.25bis Idle Character 0 0=Mark; 1=Flag S64 V.
Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2. Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and to protect it from overheating, these slots and openings must not be blocked or covered. 3. Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the power cord. 4.
Notices ! WARNING:
United States – Notice to Users of the Telephone Network 1. This equipment complies with Part 68 of the FCC rules. On the circuit card is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN) for this equipment. 2. The 3825Plus modem connects to the Public Switched Telephone Network (PSTN) using the Universal Service Order Code (USOC) for Permissive mode, RJ21X. The Canadian equivalent to RJ21X is CA21A.
9.
United Kingdom Ringer Equivalence Number The Ringer Equivalence Number (REN) is a customer guide indicating approximately the maximum number of items of apparatus that should be connected simultaneously to the telephone line. The sum of the RENs should not exceed four. This value includes any BT-provided instrument which may be assumed to have a REN of 1 unless marked otherwise. The REN of this modem is 1.
Japan Notices This is a Class A product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual. Restrictions Due to JATE (Japan Approvals Institute for Telecommunications Equipment) regulations, only 3 attempts to dial a number are permitted in a 3-minute period.
