Memotec CX800 Quick user guide

CX800 Hardware
Reference Manual
Part # 3023M100-004
Date: April 2000

PROPRIETARY NOTICE
This publication contains information proprietary and confidential to Memotec Communications Inc.
Any reproduction, disclosure or unauthorized use of this publication is expressly prohibited except as
Memotec Communications Inc. may otherwise authorize in writing.
Memotec Communications Inc. reserves the right to make changes without notice in product or com
ponent design as warranted by evolution in user needs or progress in engineering or manufacturing
technology. Changes which affect the operation of the unit will be documented in the next revision of
the manual.
© 2000 Memotec Communications Inc.
Printed in Canada
Memotec Communications Inc.
600 McCaffrey Street,
Montreal, Quebec
CANADA H4T 1N1
Tel.: [phone]
FAX:[phone]
Web Site: http://www.memotec.com

WARRANT
Memotec warrants each new Product sold by Memotec will be free from defective material and workmanship.
Memotec agrees to remedy in accordance with terms specified below any such defect which is disclosed under condi-
tions of normal installation, use and service. To exercise the warranty the Distributor/ Business Partner or any person
or corporation which purchases such Product from the Distributor/Business Partner ("end-user") must deliver the
product intact for examination, with all transportation charges prepaid, to the facility designated by Memotec.
The specific terms of the warranty are as follows:
1. The warranty period commences on the date the unit is shipped by Memotec;
2. The warranty applies to the Distributor/Business Partner, provided however, that when Distributor/
Business Partner resells any Products, pursuant to its rights hereunder, the said warranty shall apply
to any end-users which purchase such Products from Distributor/Business Partner;
3. Memotec will be responsible for both material and labour required to effect all repairs under terms of
the warranty for a warranty period of twelve (12) months(North America), fifteen (15) months (Inter-
national), from the date of shipment of the Product by Memotec, providing the unit is returned to
Memotec as specified above; and
4. During the warranty period, the Distributor/Business Partner or end-user may return defective parts
for replacement at no charge, in lieu of returning the complete Product.
This warranty does not apply if:
1. the Producthas been modified by the Distributor/BusinessPartner or end-user orsubjected to misuse,
neglect, or accident, or
2. the Product has been repaired or altered by an unauthorized service depot so that its performance or
reliability has been impaired, or
3. the Product has had the serial number altered, effaced or removed, or
4. the Product has been damaged by accessories peripherals, and/or other attachments not approved by
Memotec.
Software is warranted to substantially conform to Memotec’s specifications for a period of ninety (90) days from the
date of delivery. Memotec’s sole obligation under this warranty shall be limited to using its best efforts to correct
such Software as soon as practical after Distributor/Business Partner or end-user has notified Memotec of such
defects. Memotec does not warrant that operation of any of the Software shall be uninterrupted or error-free or that
functions contained in the licensed Software shall operate in combinations which may be selected for use by the Dis-
tributor’s/Business Partner or end-user or meet the Distributor’s/Business Partner’s or end-user’s requirements. No
warranty shall apply to any Software that is modified without Memotec’s written consent.
This warranty is in lieu of all other warranties, expressed or implied and no representative or person is authorized to
assume for Memotec any other liability in connection with the sale of the Product and Software.
IN NO EVENT SHALL MEMOTEC BE LIABLE, WHETHER IN CONTRACT OR INTORT OR ON ANY
OTHER BASIS, FOR ANY DAMAGES SUSTAINED BY THE DISTRIBUTOR/ BUSINESS PARTNER OR ANY
OTHER PERSON ARISING FROM ORRELATED TO LOSS OF USE, FAILURE OR INTERRUPTION IN
OPERATION OF ANY PRODUCTS,OR DELAY IN MAINTENANCE OR FOR INCIDENTAL, CONSEQUEN-
TIAL, INDIRECT OR SPECIAL DAMAGES OR LIABILITIES, OR FOR LOSS OF REVENUE, LOSS OF BUSI-
NESS OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, LEASE,
MAINTENANCE, USE PERFORMANCE, FAILURE OR INTERRUPTION OF THE PRODUCTS.

FEDERAL COMMUNICATIONS COMMISSION
(FCC) NOTIFICATIONS
Part 15 Advisements: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his
own expense.
Changes or modifications not expressly approved by Memotec Communications Inc.
could void the users authority to operate the equipment.
Shielded cables must be used for the serial port line interface drivers to ensure
continued compliance with FCC emission requirements. All cables are available fro
Memotec Communications Inc.
Part 68 Advisements: The CX800 complies with Part 68 of the FCC Rules. The FCC registration number
and ringer equivalence (REN) are indicated below and on the label attached to the
bottom of the chassis. Upon request, the user shall provide the FCC registration
number and ringer equivalence to the telephone company.
FCC Registration No.: 2PDCAN-25867-OT-E
Ringer Equivalence (REN): 0.0A
Service Order Code: 9.0F
USOC Jack: RJ11C
Facility Interface Code: 02LS2
This equipment is designed to be connected to a telephone network or premises
wiring using a cable with a compatible plug and modular jack which are FCC Part 68-
compliant. See installation instructions (in this manual) for details on hardware
connection.
The sum of the RENs for the equipment determines the number of devices that you
may connect to the telephone line. If the quantity of devices on the telephone line
demands too many RENs, then the equipment may fail to ring in response to an
incoming call. In most areas (but not all), the sum of RENs should not exceed five. To
be certain of the number of devices that should be connected to a line, contact the
local telephone company.
If the CX800 should cause harm to the telephone network, the telephone company
will notify you (the customer) in advance (as soon as is practical or possible) that
temporary discontinuance of service may be required. Also, you will be advised of
your right to file a complaint with the FCC if you believe it is warranted.
The telephone company may make changes in its facilities, equipment, operations or
procedures that could affect the operation of the CX800. If this happens, the
telephone company will provide advance notice in order for you to make necessary
modifications to maintain uninterrupted service.

If you encounter problems or have trouble with the CX800 and require service or
warranty information, please contact:
Memotec Communications Inc.
1-800-766-7782
If problems arise such that the CX800causes harm to the telephone network, the
telephone company may request that you disconnect the equipment until the proble
is resolved.
The CX800 cannot be used on public coin phone service provided by the telephone
company. Connection to party line service is subject to state tariffs. Contact the state
public utility commission, public service commission or corporation commission for
additional information.

INDUSTRY CANADA (IC) NOTIFICATIONS
CP-01 Advisements: NOTICE: The Industry Canada label identifies certified equipment. This certification
means that the equipment meets certain telecommunications network protective,
operational and safety requirements. Industry Canada does not guarantee the
equipment will operate to the users satisfaction.
Before installing this equipment, users should ensure that it is permissible to be
connected to the facilities of the local telecommunications company. The equipment
must also be installed using an acceptable method of connection. The customer
should be aware that compliance with the above conditions may not prevent
degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian
maintenance facility designated by the supplier. Any repairs or alterations made by
the user to this equipment, or equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of
the power utility, telephone lines and internal metallic water pipe system, if present,
are connected together. This precaution may be particularly important in rural areas.
CAUTION: Users should not attempt to make such connections themselves, but
should contact the appropriate electrical inspection authority, or electrician, a
appropriate.
The Ringer Equivalence Number (REN) assigned to each terminal device provides an
indication of the maximum number of terminals allowed to be connected to a
telephone interface. The termination on an interface may consist of any combination
of devices subject only to the requirement that the sum of the RENs of all the devices
does not exceed 5. The REN for the CX800is 0.0A.
ICES-003 Advisements: This class A digital apparatus meets all requirements of the Canadian interference-
causing equipment regulations. Shielded cables must be used for the serial port line
interface drivers to ensure continued compliance with emission requirements. All
cables are available from Memotec Communications Inc.
Directive PH-01: AVIS: L’étiquette d’Industrie Canada identifie le matériel homologué. Cette
étiquette certifie que le matériel est conforme à certaines normes de protection,
d’exploitation et de sécurité des réseaux de télécommunications. Industrie Canada
n’assure toutefois pas que le matériel fonctionnera à la satisfaction de l’utilisateur.
Avant d’installer ce matériel, l’utilisateur doit s’assurer qu’il est permis de le
raccorder aux installations de l’entreprise locale de télécommunications. Le matériel
doit également être installé en suivant une méthode acceptée de raccordement.
L’abonné ne doit pas oublier qu’il est possible que la conformité aux conditions
énoncées ci-dessus n’empêche pas la dégradation du service dans certaines situations.
Les réparations de matériel homologué doivent être effectuées par un centre
d’entretien canadien autorisé désigné par le fournisseur. La compagnie de
télécommunications peut demander à l’utilisateur de débrancher un appareil à la suite
de réparations ou de modifications effectuées par l’utilisateur ou en raison d’un
mauvais fonctionnement.
Pour sa propre protection, l’utilisateur doit s’assurer que tous les fils de mise à la terre
de la source d’énergie électrique, les lignes téléphoniques et les canalisations d’eau

métalliques, s’il y en a, sont raccordés ensemble. Cette précaution est particulière-
ment importante dans les régions rurales.
AVERTISSEMENT: L’utilisateur ne doit pas tenter de faire ces raccordements lui-
même; il doit avoir recours à un service d’inspection des installations électriques, ou à
un électricien, selon le cas.
AVIS: L’indice d’équivalence de la sonnerie (IES) assigné à chaque dispositif termi-
nal indique le nombre maximal de terminaux qui peuvent être raccordés à une inter-
face. La terminaison d’une interface téléphonique peut consister en une combinaison
de quelques dispositifs, à la seule condition que la somme d’indices d’équivalences
de la sonnerie de tous les dispositifs n’excède pas 5. L’indice d’équivalence de la
sonnerie (IES) pour le CX800 est de 0.0A.
Directive NMB-003: Cet appareil numérique de la classe A respecte toutes les exigences du règlement sur
le matériel brouilleur du Canada. Des câbles blindés doivent être utilisés pour les
interfaces de jonction au port série afin de respecter les normes d’émission. Ces
câbles sont disponibles chez Memotec Communications inc.

CONFORMITY MARKINGS FOR EUROPEAN
UNION (EU) DIRECTIVES
Several or all of the following markings may be located on CX800 products.
This marking on the chassis identifies the CX800 as fully compliant with the require-
ments of the European LowVoltage (safety) Directive (or LVD), number 73/23/EEC
and the European EMC Directive, number 89/336/EEC (and amendments that apply
to both directives).
This marking on the chassis identifies the CX800 chassis as fully compliant with the
requirements of the European Telecommunication Terminal Directive, number 91/
263/EEC (and amendments) and continued compliance with the LVD and EMC
Directives mentioned above. The approved interfaces are FXO, X.21, V.24, andV.35.
The FXO has been approved in accordance with Council Decision 98/482/EC for
pan-European single terminal connection to the public switched telephone network
(PSTN). However, due to differences between the individual PSTNs provided in dif-
ferent countries, the approval does not, of itself, give an unconditional assurance of
successful operation on every PSTN network termination point.
In the event of problems, you should contact your equipment supplier in the first
instance.
This marking identifies certain interfaces in the CX800 that are not approved for con-
nection to PTO-provided networks. Such interfaces are for private or internal use
only
This marking on the chassis identifies the CX800 voice I/O as fully compliant with
the requirements of all applicable ACA Telecommunications and EMC standards.
This marking on the chassis identifies the CX800 as fully compliant with applicable
Australian EMC requirements.

Inherent delays in packet-switched technology prevent the CX800 from meeting
certain Standard Telephone Service requirements as defined by the
Telecommunications Act 1997. For this reason, it is recommended that local outgoing
calls should not be routed through the CX800 system.
NOTE: This equipment will be inoperable when mains power fails.
An FXS port must not be connected to non-switched lines of the telecommunication
network (leased lines). All devices connected to an FXS port must be colocated with
the CX800 system. Furthermore, intra-building connections to an FXS port must not
share the same cable sheath as cabling carrying Telecommunications Network
services. Such connections must either be separately routed or individually screened
(shielded).
NOTE: All cabling connected to telecommunications ports must be TS 008 compliant.

1 OVERVIEW 1-1
1. 1 Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1. 2 Hardware Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2.1 Chassis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2.2 Motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 CHASSIS 2-1
2. 1 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.1 Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.2 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.3 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2. 2 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2. 3 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.3.1 I/O Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3.2 Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3.3 Power Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
3 MOTHERBOARD 3-1
3. 1 Processing Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.1.1 CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.1.2 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3. 2 I/O Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.1 Serial Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.2 Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.3 Voice Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3.2.4 Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3. 3 Power Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
4 INSTALLATION AND CONFIGURATION 4-1
4. 1 Preparing for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4. 2 Installing Voice LIDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4. 3 Installing AVDB Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4. 4 Configuring Voice LIDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4. 5 Configuring the User Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4. 6 Console Port Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4. 7 External Equipment Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4. 8 Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

CX800 1-1
CX800 System Functional Diagram 1-2
Front Panel 2-3
Rear Panel 2-4
Motherboard Layout 3-2
Simplified Functional Block Diagram, Motherboard 3-3
CX800 Chassis - Under the Cover 4-3
AVDB-1 Card Installation 4-4
AVDB-2 Card Installation 4-5
E&M Signal, 4-Wire Type I 4-6
E&M Signal, 4-Wire Type II 4-6
E&M Signal, 4-Wire Type III 4-7
E&M Signal, 4-Wire Type IV 4-7
E&M Signal, 4-Wire Type V 4-8
E&M 2/4-Wire Jumper Settings 4-9
FXO Jumper Settings 4-10
FXO Jumper Settings for Australia 4-11
FXS Jumper Settings 4-11
DCE Configuration of User Ports 4-12
DTE Configuration of User Ports 4-13
Fuse Bank Removal 4-16

Summary of Memory Devices 3-4
Serial Port Speeds 3-4
Console Port Pin-out 3-5
FXO Jumper Settings for LK1 4-9
FXO Jumper Settings for Australia 4-10
FXO Jumper Settings and Current Limit for LK2 4-10
Cables Available from Datacraft 4-15

3023M100-004 1-1
1OVERVIEW
The CX800 is a Frame Relay access and switching device intended for remote
branch networks. It is available in two versions: an Access Switch and a Dat
FRAD. The CX800 Access Switch converges LAN and legacy traffic with voice
over a common Frame Relay network. The CX800 Data FRAD supports the same
functionality as the Access Switch but is not voice-ready; a hardware upgrade to
add voice functionality can be ordered.
This chapter presents a functional and hardware overview of the components that
make up the CX800.
Figure 1-1 CX800

CX800 Hardware Reference Manual
1-2 3023M100-004
1.1 Functional Overview
The CX800 is an access/switching device for concentrating voice, LAN, and dat
traffic between remote branches. Refer to Figure 1-2.
Figure 1-2 CX800 System Functional Diagram
CX800
Motherboard
V.24
E
T
H
E
R
N
E
T
V
O
I
C
E
V
O
I
C
E
V.24
V.35
X.21
V.24
V.35
X.21
Console Memory
CPU
P/S
+5/+3.3/+2.5/-48 Vdc
PBX

1 OVERVIEW
3023M100-004 1-3
The functions and capabilities ofthe CX800 system arecontrolled by the circuitry
on the Motherboard and the software residing in its memory. The Motherboard
supports the following I/O ports:
• 2 analog voice channels
• 1 Ethernet 10BaseT port
• 2 serial ports supporting V.35, V.24, or X.21 interfaces
• 1 V.24 serial port
These I/O ports provide connectivity to protocols and services, such as analog
voice, fax, legacy data, and LAN on the user side, and WAN protocols, such as
X.25 and Frame Relay, on the network side. Port connectors physically connect
the CX800 to the user and network devices.
A console port is also provided for configuration of the CX800.
1.2 Hardware Overview
The CX800 system consists of a chassis housing the Motherboard and associated
daughterboards for the voice application. These components are described in th
following paragraphs.
1.2.1 Chassis
The CX800 chassis provides the framework for mounting the power entry
module, I/O connectors, and Motherboard. The front panel is equipped with one
LED for indicating power and system test. The rear panel provides an on/off
switch, power entry module with integral fuses, status-indicating LEDs, I/O ports
and a console port. The chassis also features a cutout on one side panel to access
the input-voltage selector switch.
1.2.2 Motherboard
The Motherboard contains the software, CPU and associated circuitry to support
LAN/WAN connectivity through its I/O ports.
Ethernet Por The CX800 provides one 10 Mb/s 10BaseT port. Physical connectivity to the
Ethernet LAN is via an RJ-45 connector.

CX800 Hardware Reference Manual
1-4 3023M100-004
V.24/V.35/X.21
Ports The CX800 offers two I/O ports that are software-configurable for V.24, V.35, and
X.21 interfaces. One port is designated as the user side and the other asthe WAN
(network) side. The user port is hardware-configurable for DTE/DCE operation
while the network port is permanently set for DTE operation. The ports support a
maximum speed of 2.048 Mbps. The two ports are implemented with DB-25
connectors.
V.24 Port The singleV.24 port is hardware-configurable for DTE/DCE operation and
supports a maximum speed of115.2 Kbps. The port uses a DB-25 connector.
Voice Ports The CX800 features two analog voice/fax ports with each port controlled by an
FXO, FXS, or an E&M (two-wire / four-wire) Line Interface Driver (LID). The
FXS and FXO LIDS are equipped with one RJ-11 connector while the E&M LID
provides one RJ-45 connector.
There are two hardware options for CX800 voice compression:
• two Analog Voice Daughterboards(AVDB-1) for ACELP II compression (one card for
each port), or
• one AVDB-2 for G.729 compression (one card serves both ports)
Console Port The console port is used to communicate with the CX800 for configuration and
diagnostic purposes. It features an RJ-11 connector and supports data transfe
speeds up to115.2 Kbps.