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Cisco Systems, Inc.
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Table 5 OC-3c/STM-1 Optical Interface Power
Connecting two long-reach single mode ports back-to-back in a very short span will require the use of optical
attenuators (minimum 10 db loss required).
LEDs
Table 6 ATM OC-3 Network Modules LED Description
OC-3 ATM Physical Specifications
Interface
TX Power
(maximum)
TX Power
(minimum)
RX Power
(maximum)
RX Power
(minimum) Budget
OC-3c/STM-1 Multimode
-14 dBm -19 dBm -14 dBm -30 dBm 11 dB
OC-3c/STM-1 Single-Mode Intermediate Reach
-8 dBm -15 dBm -8 dBm -28 dBm 13 dB
OC-3c/STM-1 Single-Mode Long Reach
0 dBm -5 dBm -10 dBm -34 dBm 29 dB
ATM OC-3
LEDs Function Color
ENABLED
This LED indicates the ATM OC-3 network modules
has passed self-tests and is available to the router
Green
RCLK
This LED indicates that carrier ATM receive clock
signal is present
Green
FERF
This LED indicates a far-end receive failure Yellow
OOF
This LED indicates an out-of-frame alarm condition Yellow
AIS
This LED is an alarm indication signal Yellow
Product Specifications
Dimensions (H x W x D)
1.55 x 7.10 x 7.2 in
Weight
2 lb. Max.
Environmental Conditions
Operating temp. 32 to 104 F (0 to 40 C)
Nonoperating temp. -13 to 158 F (-25
to 70 C)
Relative Humidity
5 to 95%
Protocols Supported
Full Cisco IOS in 12.0(3)T
EMI
Class A EMI
Cabling
SC type connector