TANDBERG E5780, Справочное руководство

Страница: 56 / 298

Options and Upgrades
Page 3-18 Reference Guide: evolution 5000 E5780 and E5782 Encoder
ST.RE.E10135.4
3.7 ATM Network Interface Option Module
(M2/EOM2/ATMS155_…)
3.7.1 Overview
The ATM
6
Network Interface Module allows the Encoder to transmit and receive MPEG-2
transport streams over broadband telecommunications networks (B-ISDN) using ATM.
There are different variants of the ATM Network Interface Module. The module comprises an
ATM Network Interface (common to all models) and a Physical Layer Module suitable for the
application required. Refer to
Table 3.1 for details of the variants. Menus associated with the
ATM Modules are described in Chapter 4, Operating the Equipment Locally .
3.7.2 Assembly
To provide the interface to the B-ISDN Telecommunications network, the Physical Layer
Module must be installed according to the type of network required. These are described in
Section 3.7.4, Technical Specification on page 3-19 and S ection 3.9, STM-1 OC3 Monomode
Physical Interface Module (M2/EOM2/ATMS155SM) on page 3-25 .
The S11906 has the following connectors: DVB-ASI Copper Input, DVB-ASI Copper Output
and the Ethernet Connector. They are present on all variants of the ATM Module.
3.7.3 Common Connectors
DVB-ASI Copper Input
A BNC, female 75
Ω
connector provides a DVB-PI compliant copper
connection at a fixed line transmission rate of 270 Mbit/s.
Table 3.15: DVB-ASI Copper Input Connector
Item Specification
Safety status SELV
Type Analogue
Connector designation DVB ASI-C IN
Connector type BNC 75
Ω
socket
Pin-outs: Centre
Shield
Signal
Ground/Chassis
6
ATM is the abbreviation for Asynchronous Transfer Mode.
IN