Lanex MD-76, Руководство по эксплуатации

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E1/G.703 F
IBER
O
PTIC
M
ODEM
O
PERATING
M
ANUAL
IOA76-1F 3 May 2009
1.4 Symbols and available versions
List of abbreviations:
SH – short haul
LH – long haul
MM – designed for operate with multi-mode fiber
SM - designed for operate with single-mode fiber
WDM – version to operate with single fiber, using WDM (Wavelength Division Multiplexing)
technology
1310 nm - transmitter working with 1310 nm wavelength, receiver working with 1310 nm
wavelength
1550 nm - transmitter working with 1550 nm wavelength, receiver working with 1550 nm
wavelength
1310/1550 nm - transmitter working with 1310 nm wavelength, receiver working with 1550 nm
wavelength
1550/1310 nm - transmitter working with 1550 nm wavelength, receiver working with 1310 nm
wavelength
E1 modem is available in two versions:
•
as a desktop version in a metal casing, symbol TM-76,
•
as a card installed in TM-72 telecommunication rack to cooperate with another TM-72
or MD-76 card.
A symbol example:
TM-76.1-3 – desktop modem equipped with laser transmitter of 1310 nm wave length.
Haul:
1 - short (SH)
2 - long (LH)
TM - 76.1 - X - Y
Type of optical transmitter:
3 - 1310 nm SM
4 - 1550 nm SM
5 - WDM 1310/1550 nm SM
6 - WDM 1550/1310 nm SM
Production version
Type of mechanical design:
TM - desktop version
MD - rack version