Racal-Vadic VA3450P Series User manual

Racai-Vadic
VA3450P/S/G-SERIES MODEM
INSTALLATION/OPERATION
MANUAL
[1J!IJ~{J(]
The Electronics Group
Publication Number 18008-079

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Techn1cal Publications . RACAL-VAOIC

VA3450P/S/G-SERIES MODEM
INSTALLATION/OPERATION
MANUAL
JANUARY 1982

RACAL-VADIC INC. offers a free call-in diagnostic service to assist in the operation and
testing ofall RACAL-VADIC products. RACAL-VADIC Regional Service Center personnel
are available to perform no-cost, over-the-telephone diagnostic tests of malfunctioning
equipment, to clarify options and test procedures outlined in this manual, and to describe
the operation of the controls and indicators on RACAL-VADIC products. Contact the
nearest RACAL-VADIC Regional Service Center listed below before shipping any equip-
ment in for repair.
EASTERN REGION
NORTHEASTERN REGION
SOUTHWESTERN REGION
CENTRAL REGION
WESTERN REGION
[phone]
[phone]
[phone]
[phone]
[phone]
The information in this manual has been carefully compiled and checked for technical
acc uracy . However, RACAL-VADIC Inc. accepts no responsibility for inaccuracies which
may occur. Comments or correspondence regarding this manual should be addressed to:
Racal-Vadic Inc.
Technical Publications
222 Caspian Drive
Sunnyvale , California 94086-9874
Tel. [phone]
Telex: 910-339-0207

FCC REQUIREMENTS
Connection of terminal equipment to the public switched-telephone network is regulated
by the Federal Communications Commission (FCC) as defined by FCC Rules and Regu-
lations, Part 68. These regulations require the following:
1. Before
connecting this equipment to the switched-telephone network ,' notify the
telephone company of the following information:
Name of Manufacturer ....
Equipment Model Number .
FCC
Registration Number ..
Ringer Equivalence Number
. . . . RACAL-VADIC
. . . . VA345x
(P /S/ G)
.AJ496M-67213-DM-N
.
... . ... .. . 0.9B
If other devices are to be connected with this equipment, equivalent information must
be provided for each device.
2. When trouble is experienced, disconnect this equipment from the telephone line to
determine ifit is malfunctioning. If this equipment is determined to be malfunctioning,
discontinue use until the problem has been corrected. '
3. Where such action is reasonably required in the operation of its business, the telephone
company may make changes in its communications facilities, equipment , operations
and procedures. If this occurs , you will be notified by the telephone company in
writing .
'
Connection of this equipment to party lines and coin telephone service is prohibited.
'Should this equipment cause harm to the telephone network, the telephone company
may temporarily discontinue service until the problem has been corrected .

WARNING
This equipment generates and uses radio frequency energy and, if not installed and used
properly (in strict accordance with the manufacturer 's instructions), may cause inter-
ference to radio and television reception. It has been type tested and found to comply
with the limits for a Class 8 computing device in accordance with the specifications in
Subpart Jof Part 15 of FCC Rules, which are designed to provide reasonable protection
against such interference in a residential installation. If this equipment does cause
interference to radio or television reception , which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• reorient the receiving antenna
• relocate the computer with respect to the receiver
• move the computer away from the receive_r
• plug the computer into a different outlet so that computer and receiver are on different
branch circuits.
If necessary, the user should consult the dealer or an experienced radio / television tech-
nician for additional suggestions. The user may find the following booklet prepared by
the Federal Communications Commission helpful:
"How to Identify and Resolve Radio-TV Interference Problems"
This booklet is available from the U.S. Government Printing Office, Washington, D.C.
20402, Stock No. 004-000-00345-4.

SECTION 1
SECTION 2
SECTION 3
SECTION 4
TABLE OF CONTENTS
GENERAL INFORMATION ..................... 1-1
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
FEATURES . . ...... ....... . .. . .... . ..... . 1-2
PHYSICAL DESCRIPTION. . . . . . . . . . . . . . . . . . . . . 1-2
DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
INSTALLATION ........................... 2-1
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
PRELIMINARY PROCEDURES . . . . . . . . . . . . . . . . . . 2-1
Unpacking and Inspection. . . . . . . . . . . . . . . . . . . . 2-1
Equipment Supplied . . . . . . . . . . . . . . . . . . . . . . . 2-1
Additional Equipment Required. . . . . . . . . . . . . . . . 2-1
EQUIPMENT CONNECTIONS ................... 2-3
VA3450P
Connections . . . . . . . . . . . . . . . . . . . . . . 2-3
VA3450S Connections . . . . . . . . . . . . . . . . . . . . . . 2-7
VA3450G
Connections . . . . . . . . . . . . . . . . . . . . . . 2-8
PREINSTALLATION CHECKS . . . . . . . . . . . . . . . . . . . 2-9
INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . 2-9
OPERATION .......... ... .. ... ....... .. .. 3-1
CONTROLS AND INDICATORS ... . . .. ... . ... . .. . 3-1
OPERATING PROCEDURES . . . . . . . . . . . . . . . . . . . . 3-4
Manual Originate . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Manual Answer . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Automatic Answer . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Leased
Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
TESTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
TEST SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
DLB/OFF/
ALB . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
ST/OFF . .. ...... ..... .. . .... ... .. . . ... 4-2
FAULT ISOLATION ...... ... .. . ... . .. ... . ... 4-4
AUTOMATIC SELF-TEST .. . ...... .. ..... .. . . . 4-5
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
ANALOG LOOPBACK/SELF-TEST
.. . .... .... .. ... 4-6
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
ANALOG LOOPBACK/DATA TEST . . . . . . . . . . . . . . . 4-8
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Procedure .... .. .... . ...... ,. . . . . . . . . . . . . 4-9
END-TO-END/SELF-TEST . . . . . . . . . . . . . . . . . . . . . 4-10
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
v

SECTION 5
TABLE OF CO~TENTS (cont'd)
REMOTE DIGITAL LOOPBACK/SELF-TEST 0 0
Overview 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Procedure 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
REMOTE DIGITAL LOOPBACK/DATA TEST 0 0
Overview 0 0 0 0 0 0 0 0 0 0 0
Procedure 0 0 0 0 0 0 0 0 0 0 0
SERVICE CENTERS 0
OPTIONS 0 0 0 0 0
4-12
4-12
4-13
4-14
4-14
4-15
4-15
5-1
INTRODUCTION o 5-1
Standard-Options Mode 0 5-1
Verifying
Option Settings 0 0 5-2
OPTION DESCRIPTIONS 0 0 0 0 5-2
Line-Interface
Options 0 0 0 0 5-2
Line
Connection (strap a) 0 5-2
Mode Select (switch B3) 0 5-3
Transmit Level (straps e, l) 5-3
Receive Level (strap W4) 0 5-3
Amplitude Equalizer (strap W1) 0 5-3
Phase Equalizer (strap W2) 0 0 0 0 5-3
Line-Connect Switch (strap x) 0 0 5-3
Attended / Unattended Disconnect (switch A1) 0 5-4
Auto Disconnect /Abort Timer (switch B5) o 0 0 5-4
Auto Disconnect /Loss of Carrier (switch A7) 0 5-4
Auto Disconnect/Received SPACE (strap b) 0 5-4
Send SPACE on Disconnect (strap c) 0 5-4
Te
rminal-Interface Options 0 0 0 0 0 0 0 5-5
Data
Timing (switch B6) 0 0 0 0 0 0 0 5-5
Character Length (switches A3, A5) 5-5
Transmit/Receive Clock (straps t,
v)o 5-5
External Transmit Clock (strap j) 0 0 0 0 5-5
Slave Clock (strap
d) 0 0 0 0 0 0 0 0 0 0 0 0 5- 5
Force Data Terminal Ready
(switch B2) 5-5
Delayed Carrier Detect (straps
f, g) 0 0 0 5-5
Clear
To Send Control (straps p, q) 0 0 0 5-5
Terminal Control of Data Rate (strap k) 0 5-5
Data Rate
Indicator (strap r)o 0 0 0 0 0 5-6
Maximum Data Rate (switch B4) 0 0 0 0 0 5-6
Signal_Common Reference (strap
m) 0 0 0 5-6
Test-Control
Options 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5-6
Terminal Control of Local Test/Busy Out
(straps s, u, ab, ac) 0 0 0 0 0 0 0 0 0 0 0 0 0 5-6
Remote Test
(DLB) Select (switch B1) 0 0 0 5-6
Respond To Remote Test (switch A2) 0 0 0 0 5-6
Terminal Control of Remote Test (strap n) 0 5-7
Received Data
in Remote Test (straps h, w) 5-7
Data Set Ready
in Test (switch B7) 5-7
Test
Mode Indicator (strap aa) 0 0 0 , 0 0 0 0 0 5-7
vi

SECTION 6
TABLE OF CONTENTS (cont'd)
SUPPLEMENTAL INFORMATION ...... . .. . . .. . .. 6-1
EQUIPMENT INTERFACES . . . . . . . . . . . . . . . . . . . . 6-1
Terminal
Equipment (RS232C) Interface . . . . . . . . . . . 6-1
TelCo Line Interface. . . . . . . . . . . . . . . . . . . . . . . . 6-5
VA3450P Interface . . . . . . . . . . . . . . . . . . . . . . . 6-5
VA3450S Interface . . . . . . . . . . . . . . . . . . . . . . . 6-5.
VA3450G Interface . . . . . . . . . . . . . . . . . . . . . . . 6-5
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
vii

Table 2-1
Table 2-2
Table 2-3
Table 3-1
Table 3-2
Table 5-1
Table 6-1
Table 6-2
Table 6-3
Table 6-4
LIST OF TABLES
Telephone Equipment Required . . . . . . . . . . . . . . . . . . . 2-2
VA871
Options (Model Summary) . . . . . . . . . . . . . . . . . . 2-2
Telephone Options (503C, 2503C) . . . . . . . . . . . . . . . . . . 2-2
Front-Panel Switches .. . ..... . . 3-2
Front-Panel Indicators .. .. .. . ... .... . ...... . 3-3
VA3450-Series Options. . . . . . . . . . . . . . . . . . . . . . 5-9
RS232C (DTE)
Interface Connector. . . . . . . . . . . . . . . . . . 6-4
RJ11C
Connector Pin Assignments . . . . . . . . . . . . . . . . . . 6-5
RJ41S,45S
Connector Pin Assignments .. .. . . . . 6-6
TelCo Interface Signal Definitions . . .. ... .. . . 6-6
viii