188 CHAPTER 4: FLEXIBLE INTERFACE CARDS
Connecting the Interface
Cable
c
CAUTION: By design, the FIC-1AT3 is protected against lightning strikes. But
when outdoor cabling is involved, you are recommended to add a special lightning
arrester at the input end of the E3/T3 cable for better protection.
Step 1: Connect the SMB connector of an E3/T3 cable to the Tx port on the
FIC-1AT3 and another end to the Rx port on another device.
Step 2: Connect the SMB connector of another E3/T3 cable to the Rx port on the
FIC-1AT3 and another end to the Tx port on another device.
Step 3: Check the behavior of the LINK LED on the FIC-1AT3 panel: OFF means
fault occurs on the line and the signal is out of synchronization. Check the line
status.
FIC-1ATM-OC3MM/FIC
-1ATM-OC3SM/
FIC-1ATM-OC3SML
Introduction Three ATM fiber interface card options are available with your router:
■ 1-port ATM 155 Mbps multi-mode fiber interface card (FIC-1ATM-OC3MM)
■ 1-port ATM 155 Mbps single-mode fiber interface card (FIC-1ATM-OC3SM)
■ 1-port ATM 155 Mbps single-mode long-haul fiber interface card
(FIC-1ATM-OC3SML)
They provide the following functions:
■ Two frame formats: SDH STM-1 and SONET OC-3.
■ Scrambling in data transmission.
■ Line clock (when working as DTE interface), and internal clock (when working
as DCE interface)
■ Three test measures: local cell loopback, local payload loopback and remote
loopback.
n
For the ATM interface configuration procedures, refer to H3C MSR 20/30/50 Series
Routers User Manual.
Interface Attributes The following table describes the interface attributes of the ATM cards.
Table 133 Interface attributes of the ATM cards
Attribute FIC-1ATM-OC3MM FIC-1ATM-OC3SM FIC-1ATM-OC3SML
Fiber-optic connector SC
Number of connectors 1
Interface standard SONET OC-3/SDH STM-1
Interface rate 155 Mbps
