Zte ZXR10 GER, Руководство пользователя

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ZXR10 GER (V2.6.03) General Excellent Router User Manual Volume-I
34 Confidential and Proprietary Information of ZTE CORPORATION
Indicators Function Description
Notes:
„
DATA indicator is sensitive to traffic in the port regarding
flash frequency. When the small volumes of data
send/receives by a port, DATA indicator becomes on for a
few times if the local port sends/receives a large volume
of data, DATA indicator becomes on for a certain time. If
the traffic is above a certain threshold, the indicator
becomes normally on.
„
SD indicator becomes on if the optical
transmitting/receiving devices detect any optical signals,
which belongs to the scope of the physical layer in L7
protocol.
„
Two cases are involved when the Link indicator becomes
on:
f
When the port works in the non-auto negotiation
mode, LINK indicator is on if optical signals are
detected, just like the SD indicator. (Actually, this link
set-up mode is not reliable.))
f
When the port works in auto negotiation mode, the link
must be set up according to the specified negotiation
of the Ethernet, that is, in the scope of the data link
layer. (Part of the network equipment requests link
setup by means of ARP, which belongs to the network
layer category).
RE-02P12-SFP
This is a two-port POS12 optical interface card, providing two-
channel standard OC-12c/STM-4c POS optical interface. This
card mainly implements optical/electrical signal conversion,
clock and data recovery of the line, POS frame mapping of the
OC-12c, and data width conversion.
Figure 22 shows the RE-02P12-SFP card.
F
I G U R E
2 2 R E - 0 2 P 1 2 - S F P C
A R D
RE-02P12-SFP card can provide two-channel optical interface
with different transmission distances by configuring SFP parts of
different specifications. Interface features are shown in Table 32.
Definition
Panel
Interfaces