3-4
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 3 Optical Service Channel Cards
3.2.5 Shock Hazard Label
Figure 3-4 FDA Statement Label
This label shows compliance to FDA standards and that the hazard level classification is in accordance
with IEC60825-1 Am.2 or Ed.1.2.
3.2.5 Shock Hazard Label
The Shock Hazard label is shown in Figure 3-5.
Figure 3-5 Shock Hazard Label
This label alerts personnel to electrical hazard within the card. The potential of shock hazard exists when
removing adjacent cards during maintenance, and touching exposed electrical circuitry on the card itself.
This section describes the optical service channel cards. An optical service channel (OSC) is a
bidirectional channel connecting two adjacent nodes in a DWDM ring. For every DWDM node (except
terminal nodes), two different OSC terminations are present, one for the west side and another for the
east side. The channel transports OSC overhead that is used to manage ONS 15454 DWDM networks.
An OSC signal uses the 1510-nm wavelength and does not affect client traffic. The primary purpose of
this channel is to carry clock synchronization and orderwire channel communications for the DWDM
network. It also provides transparent links between each node in the network. The OSC is an
OC-3/STM-1 formatted signal.
There are two versions of the OSC modules: the OSCM, and the OSC-CSM, which contains the OSC
wavelength combiner and separator component in addition to the OSC module.
3.3 OSCM Card
Note For OSCM card specifications, see the “A.4.1 OSCM Card Specifications” section on page A-13.
96634
COMPLIES WITH 21 CFR 1040.10
AND 1040.11 EXCEPT FOR
DEVIATIONS PURSUANT TO
LASER NOTICE NO.50,
DATED JULY 26, 2001
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