TANDBERG Voyager E5784, Справочное руководство

Страница: 60 / 384

Options and Upgrades
Page 3-18 Reference Guide: Voyager E5784 and E5788 HD DSNG Encoder
ST.RE.E10137.3
3.7 ATM Network Interface Option Module
(M2/EOM2/ATMS155_…)
3.7.1 Overview
The ATM
3
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 3.8, STM-1 OC3 Multimode
Physical Interface Module (M2/EOM2/ATMS155MM) on page 3-19 and
Section 3.9, STM-1 OC3 Monomode Physical Interface Module
(M2/EOM2/ATMS155SM) on page 3-21.
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 3.9: 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
DVB-ASI Copper Output
A BNC, female 75 Ω connector provides a DVB-PI
compliant copper connection at a fixed line transmission
rate of 270 Mbit/s.
3
ATM is the abbreviation for Asynchronous Transfer Mode.