Installing and Removing SFPs
118 7705 SAR-M Chassis Installation Guide
Bidirectional SFPs
Alcatel-Lucent supports several bidirectional SFPs (see Table 23). The optical interface
provides single-fiber, bidirectional connectivity operating at 1310 nm and 1490 nm
wavelengths. One SFP must be installed at the near end and the other SFP must be installed
at the far end of the link. To achieve connectivity, if the far-end SFP transmits at 1310 nm
and receives at 1490 nm, the near-end SFP must transmit at 1490 nm and receive at 1310 nm.
T3/E3 SFP
The T3/E3 SFP is used to interconnect two 7705 SARs over a T3 physical interface.The E3
interface is not supported. The SFP can only operate with 7705 SARs at either end.
The T3/E3 SFP has two DIN 1.0/2.3 screw-on connectors. The SFP is supplied with two 1 m
adapter cables with a 1.0/2.3 screw-type connector on one end and a female BNC connector
on the other end. For information on connecting the SFP, refer to the 7705 SAR-8 Chassis
Installation Guide or the 7705 SAR-18 Chassis Installation Guide.
The T3/E3 SFP is preconfigured with the settings listed in Table 24. These are the default
settings and they cannot be changed.
Table 24: T3/E3 Configured Settings
Parameter Configured Setting
Interface Type T3
Flow Control Enabled
Tx Clk Source LBT (line timed)
Line Type Framed C-bit
Protocol GFP-F
VCAT Overhead Disabled
FCS Disabled
Scrambler Enabled
GFP Keepalive Disabled
Line Code B3ZS
FEAC Code Disabled
Line Length Up to 225 ft (68.5 m)
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