ADTRAN DDM + H2TU-C User Manual

Ddm+ h2tu-c

Advertising
background image

JOB

A

ID

61222003L2-22A

0104

DDM+ H2TU-C

CLEI: T1L3X5BA_ _

STATUS LEDs

STATUS

RED

Alarm on the H2TU-C loop, H2R loop, DSX or DS1 interface.

FLASHING

Signal Quality of 0 or No Sync on the loop.

AMBER

Loopbacks active.

FLASHING

In-band loopbacks armed.

GREEN

Functioning properly.

FLASHING

ES, SES, or BPV detected at either DSX or DS1 interface.

RS-232 DB-9 CONNECTOR

Used to access the HDSL2 utilities menu tree via VT100 emulation software such as
Terminal, Hyper Terminal – Private Edition, and ProComm Plus.

There are two types of terminal emulation modes, Manual and Real-Time. To toggle
between the two modes, type “CTRL” and “T.” To update the screens while in Manual
Mode, press the space bar 3 times. Real-Time Update Mode is the default.

Provision terminal port as follows:

Data Rate — 1.2 kbps to 19.2 kbps
Asynchronous Data Format — eight data bits, no parity (none), one stop bit, and no

flow control.

Hardware Flow Control – disabled.

When using a PC with terminal software, be sure to disable any power saving programs.

COMPLIANCE CODES

This product is intended to be installed in an enclosure with an Installation Code (IC)
of “B” or “E” and in Restricted Access Locations only.

WARRANTY

Warranty for Carrier Networks products manufactured by ADTRAN and supplied under
Buyer’s order for use in the U.S. is ten (10) years. For a complete faxback copy of
ADTRAN’s U.S. and Canada Carrier Networks Equipment Warranty: (877) 457-5007,
Document #414.

CIRCUIT BOARD 6-POSITION DIP SWITCH – SW1

Provisions the unit. (Default settings are in bold.)

SW1-1

Selects line coding to AMI or B8ZS

SW1-2

Selects T1-framing to FRAMED or UNFRAMED

1

SW1-3

Selects T1-framing to SF or ESF

SW1-4

ENABLES or DISABLES the NIU loopback

SW1-5

ENABLES or DISABLES the loopback timeout

2

SW1-6

ENABLES or DISABLES the shelf alarm

1

UNFRAMED operation ignores the setting of SW1-3

2

Default timeout setting is 20 minutes when loopback timeout is ENABLED

CIRCUIT BOARD 5-POSITION ROTARY SWITCH – SW2

Sets the DSX-1 Line Build Out (LBO). (Default settings are in bold.)

0 — 0-133 feet of LBO

133 — 133-266 feet of LBO

266 — 266-399 feet of LBO

399 — 399-533 feet of LBO

533 — 533-655 feet of LBO

DDM+ H2TU-C

Code

Input Output

Installation Code (IC)

A

Telecommunication Code (TC)

X

Power Code (PC)

F

C

C A U T I O N

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

For a complete Installation and Maintenance faxback document: (877) 457-5007, Document #695. Please have your fax number available.

SW2

0

0

133

DSX-1 LBO

533

399

266

2

7 1

4

6

3

5

Advertising