ADTRAN 1500 Spezifikationen PDF herunterladen (Seite 2)

2 61180001L1-5BSection 61180001L1-5, Issue 2

C A U T I O N

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

Access Modules

Several access modules are available to deliver various

services. These modules include the following:

• OCU DP, Office Channel Unit Dataport,

1180005L1.

• DS0 DP, Digital Signal Zero Data Port,

1180003L1.

• U-BR1TE, U-Interface Basic Rate Interface card,

1180020L1.

• E&M/TO, Ear and Mouth, Transmit Only,

1180402L1.

• FXS/DPO/PLAR, 2-wire Foreign Exchange

Station/ Dial Pulse Originate/ Primary Line Auto

Ring, 1180403L1.

• FXO/DPT, 2-wire Foreign Exchange Office/ Dial

Pulse Terminate, 1180404L1.

• Quad FXS/RPOTS (RT), 2-Wire POTS (RT),

1180408L1.

• Quad FXO CPOTS, Quad Foreign Exchange

Office, Central Office Terminal POTS,

1175407L1, L2.

• Dual DS0 DP, Dual Digital Signal Zero Data Port,

1180203L2.

• Dual OCU DP, Dual Office Channel Unit Data

Port, 1180205L2.

• Dual FXO/DPT, Dual 2-Wire Foreign Exchange

Station/Dial Pulse Terminate, 1180207L2.

• Dual FXS/DPO/PLAR, Dual 2-Wire Foregin

Exchange Station/Dial Pulse Originate/Primary

Line Auto Ring, 1180208L2.

• TAU, Test Access Unit, 1180006L1.

Document part numbers for these units are found in the

Specifications table, (page 12, table 2).

2. INSTALLATION

After unpacking the unit, inspect it for damage. If

damage is discovered, file a claim with the carrier, then

contact ADTRAN. See Warranty and Customer Service.

NOTE

This product is intended for installation in

RESTRICTED ACCESS LOCATIONS only.

Changes or modifications not expressly approved by

ADTRAN could void the user’s authority to operate

this equipment.

Physical Description

The Total Access 1500 chassis is 21.2 inches wide by

3.5 inches high by 12 inches deep and is made of

heavy gauge metal. The unit mounts in a standard

23-inch wide rack. The shelf’s operating temperature

range is -40ºC to +65ºC for remote terminal

applications.

PSU/RGU

The Power Supply Unit/Ring Generator Unit supplies

-48 Vdc and 20 Hz ring voltage to the SCU and the

access modules. The PSU/RGU 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. A PSU is also available which

operates with an external Ring Generator.

The PSU/RGU faceplate shows a GMT fuse for power

and ringing voltage, Fail, and 20 Hz Status LEDs. The

Power Supply circuitry is fully redundant, with each

Ring Generator supplying 20 REN. If both Ring

Generators are operating properly, 40 REN is supplied

to the access modules.

SCU

The System Controller Unit provides network

management capability for the channel bank. The SCU

can provision, test, and provide status for any card in

the channel bank. It is also available in COT and RT

versions with Mechanized Loop Testing. The

faceplate has craft interface, test equipment timing

output, alarm and status indicators, plus an ACO

(Alarm Cut-Off) switch.

LIU

The Line Interface Unit connects the channel bank to

four T1 lines, with a separate T1 that is included for

protection switching. The LIU generates control

signals and clocks used by the channel units, as well as

controls both manually and remotely initiated T1

loopbacks. It detects alarm conditions and reports the

alarm status to the SCU. The faceplate has a dual

bantam jack for T1 test access, status LEDs, and a

STATUS pushbutton.

1 2 3 4 5 6 7 ... 11 12

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