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JOB

A

ID

61181020L1-22A

0008

DS3 MX 

CLEI: M3CMSP0E_ _

DS3MX

1181020L1

LOCKOUT

ON LINE

APS

  TEST/
ENABLE

POWER

STATUS

TEST

STATUS LEDs

POWER

OFF

No power is present on the unit

YELLOW

Unit is Out-of-Service

GREEN

Unit is In-Service

STATUS

OFF

Unit is Out-of-Service, Unassigned

GREEN

DS3 signal is present and synchronized

RED

Local alarm or local and remote alarm condition detected

YELLOW

Remote alarm condition detected

TEST

OFF

Unit is not in loopback

YELLOW

Loopback active

LOCKOUT

OFF

APS enabled

YELLOW

APS disabled due to INHIBIT

RED

APS is locked out due to three non-forced APS events within a 
24-hour period

ONLINE

OFF

Unit is stand-by unit (unit receives from network but does not
transmit to network)

GREEN

Unit is on-line unit (unit receives from and transmits to network)

APS PUSHBUTTON

When depressed simultaneously with the Test/Enable switch on the Off-line unit, a 
protection switch is forced.

When depressed with the Test/Enable switch on the On-line unit, it toggles APS status.

TEST/ENABLE BUTTON

When depressed alone, tests all unit LEDs (multicolor LEDs appear YELLOW).

When depressed simultaneously with the APS switch on the Off-line unit, a protection switch
is forced.

INSTALLATION PROCEDURE

Ensure the TA 3000 system chassis is properly mounted and wired for power. BNC Adapter
Module, P/N 1181004L1, is required for DS3 operation. The adapter is mounted to connector
J34 (J20 on 19” shelf), located in the lower right corner of the backplane.

Ensure SCU is seated and receiving power.

Plug DS3 module into slot A or B of system chassis. Gently but firmly push the DS3 Mux into
one of the Mux slots, A or B, at the left end of the shelf. Simultaneous thumb pressure at the
top (above the POWER LED) and bottom (below the Test/Enable button) of the unit will
ensure a good seat of the DS3 pins into the backplane connector. Push the ejector tab up and
closed against the DS3 faceplate.

Allow the self-test LED sequence to complete. The self- test should take about 40 seconds.
Upon completion, the POWER LED will be YELLOW, indicating the unit is Out-of-Service 
and the STATUS LED will be OFF indicating the unit is in the Unassigned (OOS-UA) state.

PROVISIONING THE DS3 MULTIPLEXER

To provision the DS3 Mux, connect a terminal emulator via the RS-232 (DB-9) connector on the faceplate
of the SCU.  The terminal must be VT-100 or compatible and set for 9600 bps, 8 data bits, no parity and 1
stop bit.

At the LOGON screen, enter the system password.  Note the default password is “PASSWORD” (case
sensitive) and can be changed upon initial login.

Select Common A or Common B from the Total Access Menu.

Select option 2, 

Provisioning

, and press <enter>.

The following table lists the provisioning settings and their default values.

Options

Settings

Default

Framing

M13, C-Bit, Auto detect

Auto detect

Line Build Out

Short, Long

Short

Clock Source

Local, Loop

Loop

Service State

In Service, OOS-Unassigned, OOS-Maint

OOS-Unassigned

Linked Provisioning

Enabled, Disabled

Enabled

Line Code

B3ZS (cannot be changed)

B3ZS

Framing - sets the DS3 framing.

Line Build Out - set LBO to either Short or Long.

Short - cable length is less than 225 feet of 734A or equivalent coaxial cable or less than 

100 feet of Lucent 735 or equivalent coaxial cable.

Long - cable length is greater than 225 feet of 734A or equivalent coaxial cable or 

greater than 100 feet of Lucent 735 or equivalent coaxial cable. 

Clock Source - selects where the transmit clock derives its timing.

Local - derives its clock from an on-board oscillator.
Loop - derives its clock from the incoming DS3 data stream.

Service States - the following table lists the operations allowed in each state.

Service

Report

Report

Switch to

Allow

Trib

Ntwrk

Allow

Allow

Allow

State

Alarms

TL1 PM

Provide

Forced

Data

Data

Dwnld

Prov

Maint

Data

Service

Switch

on Fault

into Unit

OOS, Un

N

Y

N

N

AIS

IDLE

Y

Y

Y

OOS, Ma

N

Y

Y

Y

Norm

Norm

Y

Y

Y

In Service

Y

Y

Y

Y

Norm

Norm

N

N

N

Linked Provisioning - when enabled, automatically transfers provisioning changes made to the
enabled unit to the other unit.

Line Code - this value is hardcoded to B3ZS and cannot be changed.

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.

DS3 MUX

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For a complete Installation and Maintenance: 877.457.5007, Document #317.  Please have your fax number available. 

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