ADTRAN 850 User Manual

CLEI Code: SILCHL0DAA

TA 850 System Installation and Maintenance

61200376L1-5B

Issue 2, June 2000

Contents

1. General...........................................................................1

2. Product Overview ........................................................ 1

3. Installation..................................................................... 2

4. Specifications.................................................................6

5. Maintenance..................................................................6

6. Warranty and Customer Service................................6

7. Limited Product Warranty.......................................... 7

8. Regulatory Requirements............................................7

Figures

Figure 1. TA 850................................................................1

Figure 2. TA 850 Backplane.............................................2

Figure 3. TA 850 Component Layout and Cable Con-

nections.............................................................. 3

Figure 4. Connector Pinout.............................................5

Figure 5. T1 Connections................................................. 5

Figure 6. Alternate Power Connection.......................... 5

Figure 7. Office Alarm Connections .............................. 6

Tables

Table 1. TA 850 Backplane Connections....................... 4

Table 2. Wire Wrap Identification.................................. 6

Table 3. Alarm Notification............................................. 6

Table 4. Specifications and Part Numbers.................. 10

1. GENERAL

This practice provides installation and maintenance procedures for the ADTRAN Total Access850 (TA850) System. The Specifications and Part Numbers Table (Table 4on page 10)showspart numbers for equipment and documents referenced in this practice. Referenced practices shouldbe on-hand during system installation.

NOTE This is not an operationalmanual. Toobtain an operational manual, contact ADTRAN Technical Support at (888) 4ADTRAN.

Revision History

This is the initial release of this document. Future revisions to this document will be described in this subsection.

TA 850 system benefits integrated communications providers,such as CLECs,ILECs, andISPs, who require a customer premises device that integrates voice and data functions, and provides a viable migration path from TDM to packet-basedtechnology. The TA 850 features remote management, an integrated IP/IPX router, and special services slots.

Figure 1. TA 850

TheTA 850 is a modular device,with two common slots and eight access slots. Common cards required for operation are a powersupply unit (PSU) and a routercontrol unit (RCU). The RCU is a card that currently supports TDM-based applications, but can be easily upgraded to an ATM-based controller as requirements change. The RCU includes a T1 network interface, DSX-1PBXinterface,Nx56/64V.35interface,andbuiltin IP/IPX router. Six access slots allow the user to combine a variety of voiceand data services. Up to six Quad FXS or Quad FXO access modules can be installed to support up to 24 analog voice lines. Other access modules for data applications include the OCU DP and ISDN U-BR1TE. The other two access slots are for future hardware options.

Using local or remote inband management, carriers can turn features, functions, and access ports on and off. Easy access to modules, common cards, power supplies, and the battery back-up system simplify maintenance procedures. Hot-swappable modules may be replaced without disrupting other units. The four-circuit-per-module desig n ensures that only four analog circuits are affected when replacing a module.

2. PRODUCT OVERVIEW

The TA 850 system (see Figure1) is an integratedaccess device designed for cost-effective deployment of voice and data services at the customer’s premises. The

61200376L1-5B 1

Trademarks: Any brand names andproductnamesincludedin thisdocument are trademarks, registered trademarks, or trade names of their respective holdres.

A compact, NEBS-compliant cabinet suitable for the customer premises or thecentral office provides added safety and reliability. The 2U design uses little rack space. When wall mounted, the 8.5-inch by 11-inch

chassis occupies a space the size of a piece of n otebook paper. Two TA 850 systemscan be mounted side-byside in either 19-inch or 23-inch relay racks. Preconfigured packages are available.

Features

TheTA850includesthefollowingfeatures:

• T1/FT1 integrated access

•TDMtoATMmigration

• Modular network interface for future xDSL compatibility

• Integrated IP/IPX router

• Integrated DSX-1 PBX interface

• V.35 Nx56/64 DTE interface

• TR-08 signaling support

• Analog FXS and FXO voice expansion (four per board)

• SNMP management

• NEBS and UL 1950 compliance

• Industry leading 10-year warranty

Functional Description

The TA 850 System comprises the chassis, common cards, and access modules. Associatedwith the system are additional elements including an AC to DC power supplyandbatterychargingunitandabatterypackfor backup power.

WARNING On TA 850 installations that do not use all chassis slots, UL 1950/NEBS requires that the empty slots must have a TA 850 blank unit (part number 1175099L1) installedin the opening.

External AC and DC Power. The ADTRAN AC/DC Power Supply/Battery Charging unit receives its power from a standard 115 VAC outlet. During operation, the power supply maintains -54 VDC to the PSU. The power supply battery charging circuit maintains the battery pack at peak charge. In the event ofan AC power failure, the battery backup circuit automatically provides battery power to the PSU for up to 8hours. When AC power is restored, input power automatically returns to the AC supply and the battery charging circuit will recharge the battery to peak.

On the TA 850 chassis, the incoming power termination point is on either of two backplane connections: P7 or P6. (See Figure 2.) Both sources connect directly to the PSU.ConnectorP6isusedwhenthechassisispowered by the ADTRAN AC/DC Power Supply unit (P/N 1175043L1) which mounts externally to the chassis.

ConnectorP7 is used when-48 VDC is available on site and screw-type terminal connections are required.

Figure 2. TA 850 Backplane

PSU. The Power Supply Unit supplies -48 VDC and

20 Hz ringing voltage to the Router Controller Unit (RCU) and the access modules. The PSU converts

-48 VDC input to the required voltages needed to operate all common units and access modules. The ring generator circuit provides 20 Hz ring voltage to the analog access modules.

ThePSUfaceplate(seeFigure1onpage1)showsthe following: two GMT fuses (one for power and one for 20 Hz ringvoltage), a channel bank status LED, and an alarm cutoff (ACO) pushbutton switch. The separately fusedring generator supplies upto 20 REN tothe access modules.

RCU.The Router Controller Unit isa dual boardassembly that provides the networkinterface. The RCU can provision, test, and provide status for any card in the channelbank. The faceplate hasa DB-9

CRAFT

port connection, dual bantam jack connection, plus network, V.35, and Ethernet LEDs.

Access Modules. The TA 850 is designed to support Quad FXS, Quad FXO, OCU DP, and UBR1TE access modules.

3. INSTALLATION

Before installing the TA 850, carefully inspect the TA 850 Base Unit for shipping damage. If you suspect damage, file a claim immediately with the carrier and then contact ADTRAN Customer and Product Service. ( See “Warranty and Customer Service” on page 6.) If possible, keep the original shipping container for returningthe TA 850 for repair or for verificationof damage during shipment.

Your ADTRAN shipment includes the following items (if the unit is not purchased directly from ADTRAN, it may be packaged differently):

• TA 850 chassis, PSU, RCU, and blanks

• TA 850 System Installation and Maintenance Practice

2 Issue 2, June 2000 61200376L1-5B

Grounding Instructions

This section provides grounding instruction information from the Underwriters' Laboratory UL 1950 Standard for Safety: Information Technology Equip ment .

An equipment grounding conductor that is not smaller in size than the ungrounded branch-circuit supply conductorsistobeinstalledaspartofthecircuitthatsupplies the productor system. Bare,covered,or insulated grounding conductors are acceptable. Individually covered or insulated equipment grounding conductors shall have a continuous outer finish thatis eithergreen, or green with one or more yellow stripes. The equipmentgroundingconductoris tobe connectedto ground at the service equipment.

The attachment-plug receptacles in the vicinity of the product or system areall to beof a grounding type, and the equipment grounding conductors serving these receptacles are to be connected to earth ground at the service equipment.

A supplementary equipment grounding conductor shall be installed between the product or system and ground that is in addition to the equipment grounding conductor in the power supply cord.

The supplementary equipment grounding conductor shall not be smaller in size than the ungrounded branch-circuit supply conductors. The supplementary equipment grounding conductor shall be connected to the product at the terminal provided, and shall be connected to ground in a manner that will retain the ground connection when the product is unplugged from the receptacle. The connection to ground of the supplementary equipment grounding conductor shall bein compliance with the rules for terminating bonding jumpers at Part K or Article 250 of the National Electrical Code, ANSI/NFPA 70. Termination of the supplementary equipment grounding conductor is permitted to be made to building steel, to a metal electrical raceway system, or to any grounded item that is permanently and reliably connected to the electrical service equipment ground.

TA850

AAEEKK

AEK

PUY

DJN

DSX-1

POWER

V.35

BFLRVZDDJJNN

-54 VDCOutput to TA850

AC/DC PowerSupply Battery Charging Unit

AC PowerInput

-48 VDCBackup Battery Pack

-54VDC

120VAC/

OUTPUT

2A60HZINPUT

ACALARM

BATTERY

OUTPUT

INPUT

GROUND

ToAlarms

-54 VDCBattery

Charging/Discharging Line

WARNING:

20HzFUSE

CRAFT 10 BASE T

MUSTBEREMOVED

BEFOREREARCOVER

CAUTION

DuringTA 850 wall installation,

position chassis so front

panels face UP.

Figure 3. TA 850 Component Layout and Cable

Connections

Mounting Brackets. The TA 850 chassis includes wall

mount brackets. If rack mount bracketsare needed,use part number 1175045L1or 1175046L1 for 19-inch or 23-inch, respectively.

Tools Needed (Wall-Mount). The TA 850 chassis mountsand connects withstandard fastenersand hand tools:

• Four #8 x 3/4 inch pan-head wood screws

• Drill and drill bit set

• Flat head screwdriver (medium)

• Two Phillips head screwdrivers (small /medium)

• Wire-wrap gun (optional)

• 5-pair male amphenol cable (customer connection)

• Selected punch-down block and tool Mount the Chassis. Installthechassisasfollows:

1.Position the chassis at the desired location; observe

required clearances an d ensure cable plugs reach their designated sockets.

2.Ensure the chassis is plumb; then mark through the

flange mounting holes to identify where the pilot holes will be drilled.

3.Using a 1/16 inch bit, drill pilot holes at the marked

locations.

4.Mount the chassis using the four #8 by 3/4 inch pan-

head wood screws.

Install the Chassis

Standard installation is a single unit wall mount. Position the chassis with the access modules facing up. Mount on heavy plywood (3/4 inch minimum). Refer to Figure 3 for component layout.

Required Clearances. A minimum 10-inch clearance is required on thefrontend for access module insertion and withdrawal. On the backplane end, a five-inch clearance is required for wiring access to the V.35 connector. For those units installed in a communications bay, standard bay clearances are satisfactory.

Connections. Allconnectionsaremade throughterminals, jacks, and wire-wraps on the backplane. Refer to Figure 2 on page 2 for backplane connections. Refer to Table 1 on page 4 for backplane reference designator descriptions and functions supported.

A removable rear cover provides access to the backplane, and an access panelthat mountsto the rearcover allows access to wire-wrap strips P1, P3, andP5,power terminal strip P7, and clock termination switch SW1 without removing themain rearcover. MostCPE applications will not require removal of the rear cover.

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