ADTRAN T200 IDSL warranty Options, Switch Description

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2-wire Integrated Services Digital Network (ISDN) U-interface to the traditional 4-wire DDS signal for presentation to the customer.

The IDSL OCU-R is a digital network interface device located at the customer premises point-of- demarcation. In addition to terminating the ISDN U-interface, the IDSL OCU-R functions as a regenerative loopback device supporting Telco- generated testing. The IDSL OCU-R unit is available in T200 mechanics and can be optioned for 0 or -10 dB output toward the customer. Figure 2 illustrates the IDSL OCU-R Circuit Diagram. The IDSL OCU-R is powered from -120 Vdc constant voltage supplied by a U-BR1TE with PWR, or -48 Vdc provided by a locally powered T200 compatible mounting.

 

Channel Bank

Customer Premises

 

 

 

4-Wire Customer

 

U

2-Wire Loop

Interface

 

T-Carrier

B

 

 

R

 

IDSL OCU-R

DSU/CSU

 

1

T/R Pair

 

 

 

 

T

 

 

 

E

 

 

 

Figure 2. IDSL/DDS Circuit Diagram

Features

2-wire DDS deployment provided over a U-interface.

Dual powering capability; Locally powered by -48 Vdc provided by mounting assembly or by -120 Vdc from a U-BR1TE with PWR.

DB-9 craft interface access for provisioning, testing, and performance monitoring.

Frame IQ/ADS-6 provide physical layer and Frame Relay PM and inband PM access respectively.

Protected loopback prevents false latching loobpack at 64 kbps.

Switch selectable data rate including subrates, 19.2 and 56 kbps rates, including secondary channel, and 64 kbps clear channel capability.

LED indicators for operational status.

T200 mechanics.

Transmits Abnormal Station Code upstream during out-of-service 4-wire customer loop condition.

2. OPTIONS

Options and rate are selected with the front panel DIP

switches

as shown in Figure 1 and listed in Table 1.

 

 

Table 1. Options

 

 

 

Switch

 

Description

 

 

 

SC

 

ON selects the Secondary Channel if 56,

 

19.2, 9.6, 4.8, or 2.4 are selected

 

 

 

 

 

64

 

ON selects 64k clear channel data

 

 

 

56

 

ON selects 56k data and, if SC = ON,

 

selects 56k secondary channel data

 

 

 

 

 

19.2

 

ON selects 19.2k data and, if SC = ON,

 

selects 19.2k secondary channel data

 

 

 

 

 

9.6

 

ON selects 9.6k data rate and, if SC = ON,

 

selects 9.6k secondary channel data

 

 

 

 

 

4.8

 

ON selects 4.8k data rate and, if SC = ON,

 

selects 4.8k secondary channel data

 

 

 

 

 

2.4

 

ON selects 2.4k data rate and, if SC = ON,

 

selects 2.4k secondary channel data

 

 

 

 

 

SW56

 

ON selects Switched 56 operation

 

 

 

-10 dB

 

ON reduces DDS transmit signal by

 

approximately 10 dB

 

 

 

 

 

QM

 

ON enables quality monitoring

 

 

 

EC

 

ON selects error correction mode. Only

 

valid for rates of 19.2k or lower

 

 

 

 

 

 

 

ON allows unit to respond to latching

 

 

loopbacks; unit always responds to non-

LLEN

 

latching loopbacks

 

OFF while in 64k data mode will enable

 

 

 

 

PLB feature; latching loopbacks are always

 

 

enabled in this mode

 

 

 

Customer Interface Transmit Line Build Out When -10 dB (SW1-1) is ON, the IDSL OCU-R transmits a -10 dB AMI signal across the 4-wire customer interface toward the CSU/DSU. When OFF is selected the unit transmits a 0 dB AMI signal toward the CSU/DSU.

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61220010L2-5, Issue 3

61220010L2-5C

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Contents General L2-5C Issue 3, AprilClei # NCT1TX2B Revision HistoryOptions Switch DescriptionOptions Installation Local Power Applications WiringSpan Power Applications Wiring ConnectionsLED Indication TestingLoopback Testing Alternating Loopback SequencesSee Figure IDSL/DDS Trouble CodeAdtran U-BR1TE Bidirectional Loopback Control Port Operation OperationDefinition of Screen Abbreviations Abbreviation and DefinitionTerminal Modes Menu Manual Update Mode REAL-TIME Update ModeOCU-R Network DSL AlarmsCustomer Alarms AttenOCU-R Network Customer Latching Loopback TimeoutLoopbacks Clearing PM and Event Log Registers Interface OOS Screen EventLMI Idsl Interface DDS Loop INV--FECN--BECN---LMI--%UTFecn Event First Last Current OCU-R PowerLast LOG Reset DDS Sync LossClei MM/DD/YYHH/MM/SS Warranty and Customer Service Remote Provisioning and DiagnosticsMaintenance Deployment GuidelinesAdtran Repair/CAPS Adtran SalesAdtran Technical Support Repair and Return Address61220010L2-5, Issue