Cisco CES E1 BNC 구성 매뉴얼 - 페이지 10

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Connecting the Interface Cables and Checking the LEDs

Table 8-2

Port LEDs

S1 (status1)

S2 (status2

CD (carrier detect)

Table 8-3 shows the possible status conditions of a CES T1or CES E1 port, as indicated by

certain settings of associated port LEDs.

Table 8-3

Port Status Indication

Port not conﬁgured

Port administratively down

Normal

Red alarm due to framing error

Red alarm due to loss of cells

Yellow alarm

Blue alarm

Port in loop state

Note

state combination indicated in Table 8-3. For example, when the line conditioning state

machine is notiﬁed of loss of signal (LOS), it will cause S1 and S2 to ﬂash red, since a

continued LOS will put the port in the red alarm state.

8-10 LightStream 1010 ATM Switch PAM Installation Guide

LED Illumination States of CES T1 or CES E1 PAMs

Illumination States

Steady green, red, or yellow; ﬂashing green, red, or yellow; or off.

Either on (green) or off.

Port Status Conditions Indicated by CES T1 or CES E1 LEDs

During alarm integration, the indicated LEDs will ﬂash the "upcoming" or "next"

S1 LED State S2 LED State CD LED State

Off

Green

Red

Yellow

Off

Yellow

Flashing green

Off

Green

Off

Green