Redundancy And Field Replaceable Components; Introduction - Avaya Communication Server 1000 Installation And Commissioning Manual

• up to two DSP daughterboards can be used with the MGC. Three DSP daughterboard
capacities are available:
- 128-port daughterboard (NTDW78AA)
- 96-port daughterboard (NTDW64AA)
- 32-port daughterboard (NTDW62AA)
• up to four optional downloadable D-channel (DDCH) daughterboards (NTBK51AA/
NTBK51AAE5/NTBK51CAE5 or later) or D-channel interface (DCHI) daughterboards
(NTAK93AB) that mount on the E1/T1 card
• 19-inch rack (customer-supplied)

Redundancy and field replaceable components

The PRI Gateway does not include redundant components. PRI Gateways with fewer spans
can be purchased to achieve the desired redundancy.
See Table 6: Replaceable components
that can be ordered as separate items.
Table 6: Replaceable components
NT code
NTDW72AAE5
NTDW71AAE5
NTDW73AAE5
NTDW70AAE5
NTDW75AAE5
NTDW76AAE5
NTDW60BA
NTDW78AA
NTDW64AA
NTDW62AA
NTBK51AA/
NTBK51AAE5/
NTBK51CAE5
(and later)
NTAK93AB
Media Gateway 1000E PRI Gateway Installation and Commissioning
on page 35 for a list of PRI Gateway components
Description
PRI Gateway chassis
PRI Gateway Power Supply Unit
PRI Gateway cooling Unit
PRI Gateway E1/T1 main pack
PRI Gateway E1/T1 expansion
daughterboard
PRI Gateway Compact Flash Memory Card Existing
Media Gateway Controller (MGC)
MGC DSP daughterboard (128 ports)
MGC DSP daughterboard (96 ports)
MGC DSP daughterboard (32 ports)
DDCH daughterboard
DCHI daughterboard

Introduction

New or existing
Existing
Existing
Existing
Existing
Existing
Existing
New
Existing
Existing
Existing
Existing
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