SNA 4600
Standalone ARM Network Adaptor Configuration
guide
Issued by Network Products Marketing Department
GSNA4600 - 09/1999
THOMSON broadcast systems - All rights reserved
p. 8 of 11
Transmission Capability
Tributaries effective bit rate versus the network bit rate:
Network bit rate (Kbps) Tributaries effective bit rate (Kbps)
34,368 (E3) 29,131
44,736 (DS3) 37,967
139,264 (E4) 118,727
155,520 (STM-1) 128,653
Multiple Service Capability
ATM Multiplexing of MPEG-2 TS and G703 data streams
up to 7 TS for single UNI throughput
up to 2x3 TS for dual UNI throughput
Signalling Capability (option)
Full ATM UNI broadband switched services
(Supports SVC, PVC)
Complies with UNI 3.1
ATM Adaptation Layer

ATM Adaptation Layer type 1 (AAL1)

Compliant with ITU-T recommendation I.363
Compliant with ITU-T recommendation J.82
Bit errors and cell losses correction mechanism RS (128,124) x 47
Adaptive source clock frequency recovery mechanism

ATM Adaptation Layer type 5 (AAL5)

Compliant with ITU-T recommendation I.363
Compliant with ITU-T recommendation J.82
CRC based error detection mechanism
Adaptive source clock frequency recovery mechanism
Management

Services Connections management:

complies with UNI 3.1 ATM Forum protocol
controlled either from front panel keypad (in shortform mode) or from a
remote manager (in explicit mode)
100 port descriptors address book downloadable in NVRAM

SNA 4600 control and monitoring:

operated either from front panel keypad or from a remote manager

Alarm interfaces:

One dry contact alarming on rear panel (configurable)
(9-pin SubD connector)