Adc ACE-COM L1 Manuel d'utilisateur télécharger pdf (Page 18)

Installation LTPH-UM-1088-02, Issue 2

8 January 3, 2002 ThinMux Chassis

WIRING THE COMMON ACCESS PANEL

1 Unscrew the common access panel hold-down lugs and remove the cover

(see Figure 4).

Figure 4. Wire-Wrap Pin Positions/Common Access Panel (rear view)

Connect a BITS Timing Source

2 Determine if you require a BITS timing source connection to the chassis;

if so, the chassis must first have a line termination prior to chassis

connection.

The BITS concept is used for interoffice synchronization distribution.

Each line source, Bits A and Bits B, must be terminated. ADC provides

this termination through external termination blocks (product catalog

TERM-100) placed on wire-wrap terminal posts on the rear of the

ThinMux chassis as shown in Figure 5 on page 9.

Test

Access

CRIT

VIS

CRIT

AUD

Bits Alarm

B-

B+

A-

A+

TTIP

TRING

RTIP

RRING

Frame

GND

Frame

GND

NO NO

COM COM

NU NU

MIN

MAJ

CRIT

COM

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Adc ACE-COM L1 Manuel d'utilisateur Page 18