User's Manual Part 3

Multi–Channel CDMA Card

9-28 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004

PRELIMINARY

Introduction

The procedures in this section cover only the Multi–Channel CDMA

(MCC) cards. The MCC–1X cards occupy the fourth, fifth, and sixth

slots (MCC 1, 2, & 3) in the CCP2 Shelf.

If the MCC–DO card is in use, proceed to that section for more

information later in this chapter.

System Impact/Considerations

If an MCC–1X card fails it will cause some interruption in call

processing in the sense that not all calls will be handled. The other

MCC–1X cards may not be able to handle the additional calls thus calls

on the failing or failed card will be dropped.

If an MCC–1X card must be replaced, it must be ensured that it has the

same number of channels as the card being replaced.

MCC Front Panel

PWR/ALM LED

The MCC–1X card has its own alarm (fault) detection circuitry that

controls the state of the PWR/ALM LED. When the LED is:

S Green –

– OFF – INS_ACT no alarm.

S Red – Power-up or fault condition.

Active LED

The MCC–1X card has circuitry that controls the state of the Active

LED. When the LED is:

S Green –

– Solid – INS_ACT no alarm.

– Rapidly Flashing – OOS_RAM no alarm.

– Slowly Flashing – OOS_ROM no alarm.

S Red –

– Fault condition or card is in reset.

– Slow flashing (alternating with green) – CHI bus inactive on power

up.

Required Items

Documents

None.

Tools

None.