ADC HDU-409 Lists 1 Guia de Instalação descarregar pdf (Página 6)

INSTALLATION CONTINUED

3 Align the HRU with the enclosure slot guides, then push the unit in until it is properly

seated in the backplane card-edge connector.

VERIFICATION

Once the HRU is installed, verify that it is operating properly by monitoring the Status

LEDs on the front panel.

LOGGING ON TO THE MAIN MENU

The HRU-402 List 1 and List 3 support local and remote logon through a maintenance

terminal (VT-100 or a PC running VT-100 terminal-emulation software) connected to the

craft port on the front panel. Remote login creates menus and screens for the HRU that are

identical to those viewed at the HLU. Once logged on, you can access the Remote Terminal

Main Menu screens to view system settings, initiate loopbacks, and provision the circuit.

To log on and access the Remote Terminal Main Menu screens using a maintenance

terminal:

1 Press the several times to display the Remote Login screen.

2 Press the key to view the HiGain Maintenance Terminal Screen. The Remote

Terminal Main Menu items are replications of the line unit screens. Depending on the

HLU attached to the HRU-402, remote provisioning may be available. Refer to the

HLU technical practice for details.

LOOPBACK TESTING

Initiate loopback testing from the maintenance terminal menus or by using inband codes.

The inband codes shown below can be sent by a test set. For more information, refer to the

technical practice for the HLU line unit.

COMPATIBILITY

The HRU-402 List 1 and List 3 are compatible with the following ADC products:

HRU-402

HiGain

REM UNIT

ALM

TELEPHONE Co. PROPERTY

LP2

ESF

LP1

B8ZS

AMI

LBK

RCV

LEV

TLOS

-15

DIS EN

XMT

BRG

RCV

RS-232

DCE

Craft port provisioning

To access all system maintenance, provisioning

and performance screens, connect a standard

9-pin terminal cable between the serial port on a PC

and the HRU craft port.

Loopback control button

S1 switches (SCURR and LPWR)

Pressing the button for 5 seconds activates

a remote loopback towards the network, called a

Network Remote Loopback (NREM).

The unit can be looped down by

either pressing the LPBK control button again

for 5 seconds or by the standard loopdown inband

messages.

Any

existing loopback is terminated before NREM

is activated.

Located next to card-edge connector. See step 2 (Installation)

for more information

Modem settings:

1200-9600 baud

8 data bits

No parity

1 stop bit

Hardware flow control: OFF

Terminal emulation: VT-100

DS1 Tip

Card-edgeConnector

DS1 Ring

HDSL2 Ring1

HDSL2 Tip1

Factory Use Only

Protection Switch Power

DS1 Ring1

Circuit Ground

(-)

(+)

HDSL1 Ring

XMT

RCV

HDSL1 Tip

DS1 Tip1

Chassis Ground*

32 31

Note: Active pins are highlighted in black.

*Chassis Ground may be tied to earth ground per local practice.

Protection Switch Control

Chassis Ground*

Alarm LED

Loopback LED

DS1 RSV LEV

and TLOS loopback

switches

CLEI/ECI Bar code label

Extraction handle

Configuration number label

(inside handle)

HDSL LEDs

DS1 framing LEDs

DS1 code LEDs

List number

DS1 transmit (XMT) and receive (RCV)

bridging jacks

For non-intrusive test access

-48 Vdc Local Power (List 1)

-20 Vdc to -70 Vdc Local Power (List 3)

Enable the SCURR switch if you are using the following

doublers: HDU-404, HDU-407, HDU-409, HDU-437, HDU-439

List 1 or 1B, HDU-451 List 4 or 4B.

Disable the SCURR switch if you are using an HDU-451 List 1,

2, 3, or 3B.

Status LED Descriptions

LED Status Indicates

Alarm (ALM) LED Shows alarm states for remote and local Loss of Signal (LOS).

Solid red Indicates a Loss of Signal (LOS) condition at the T1 input of the HRU.

Blinking Indicates a LOS condition at the T1 input of the line unit.

HDSL LED Displays HDSL Loop 1 (LP1) and Loop 2 (LP2) conditions.

Solid green Indicates HDSL loop is in sync.

Blinking once

per second

Indicates the HDSL loop is trying to acquire sync.

Blinking 4 times

per second

Indicates a margin alarm condition on the HDSL loop.

Blinking 10 times

per second

Indicates a Cyclical Redundancy Check (CRC) error on the HDSL loop.

OFF Indicates no activity on the HDSL loop.

DS1 Framing (FRM)

LEDs (ESF and SF)

(a)

(a) If DS1 signals are not detected the ESF, SF, B8ZS and AMI LEDs do not light.

Indicates framing patterns. If DS1 signals are not detected, the ESF and SF LEDs

will not light.

ESF LED = Solid green Indicates Extended Super Frame (ESF). The LED blinks once per second when a

frame error occurs.

SF LED = Solid green Indicates Super Frame (SF). The LED blinks once per second when a frame error

occurs.

OFF Indicates unframed or no signal.

DS1 Code LEDs (B8ZS

and AMI)

(a)

(b)

(b) Auto option indicates when the DS1 code is being detected as AMI or B8ZS. This option is not available

with HLU-231 List 8D and List 8E, HLU-319 List 5D and List 5E, or HLU-388 List 5D and List 5E.

Indicates DS1 code options. If DS1 signals are not detected, the B8ZS and AMI

LEDs will not light.

B8ZS LED = Solid green Indicates that the DS1 line code option is set to Bipolar with 8-Zero Substitution

(B8ZS). The LED blinks once per second when a string of excessive zeros is

detected.

AMI LED = Solid green Indicates that the user DS1 line code option is set to Alternate Mark Inversion

(AMI). This LED blinks once per second when a Bipolar Violation (BPV) is

detected.

Loopback (LPBK) LED

Shows loopback states to and from the network and to and from the Customer

Interface (CI).

Solid yellow Indicates Network Remote (NREM), SmartJack (SMJK), or Transmit Loss of

Signal (TLOS) loopback.

Blinking once

per second

Indicates Customer Local (CLOC) loopback state.

Blinking 4 times per

second

Indicates the HRU is in an Armed state.

For more detailed information about the Maintenance Terminal

screens, provisioning, and loopback mode testing, download the

appropriate line unit technical practice from the ADC website at

www.adc.com. To order a hard copy, please contact your sales

representative.

GNLB Loopback Commands

Loopback Inband Code Description

NLOC 1111000 DSX-1 signal is looped back to the network at the HLU.

NDU1 110000 DSX-1 signal is looped back to the network at HDU1.

NDU2 111000 DSX-1 signal is looped back to the network at HDU2.

NDU3 1010001 DSX-1 signal is looped back to the network at HDU3.

NDU4 1010010 DSX-1 signal is looped back to the network at HDU4.

NREM 1110000 DSX-1 signal is looped back to the network at the HRU.

SMJK 11000

DSX-1 signal is looped back to the network at the HRU SmartJack

module.

CLOC 1111100 Signal from customer is looped back to the customer at the HRU.

CDU1 111100 Signal from customer is looped back to the customer at HDU1.

CDU2 111110 Signal from customer is looped back to the customer at HDU2.

CDU3 1011001 Signal from customer is looped back to the customer at HDU3.

CDU4 1011010 Signal from customer is looped back to the customer at HDU4.

CREM 1111110 Signal from customer is looped back to the customer at the HLU.

Loopdown 11100 Deactivates any of the above loopbacks.

Line Units Doublers Indoor Enclosures Outdoor Enclosures

HLU-231 List 8x HDU-404 HRE-420 HRE-450

HLU-319 List 5x HDU-407 HRE-422 HRE-454

HLU-388 List 5x HDU-409 HRE-425

HLU-200 HDU-437 HRE-427

HDU-439 List 1 or 1B 200 mechanics shelves

HDU-451 List 4 or 4B 400 mechanics shelves

SPACEBAR

ENTER

Network

Customer

Premises

HLU HDU1 HDU2 HRU

NLOC

NDU1 NDU2

NREM

SMJK

TLOS

CREM CDU1 CDU4CDU2 CLOC

HDU3 HDU4

NDU3 NDU4

CDU3

1 2 3 4 5 6 7

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