1000Base-Lx Interface; 1000Base-T - Cisco ASR 5000 Series Installation Manual

▀ Interface Specifications

1000Base-LX Interface

The 1000Base-LX fiber SFP interface on the Ethernet 1000 LX line card has one pair of host connectors. The QGLC
has four pairs.
Table 98. 1000Base-LX Fiber Transmit and Receive Levels

1000Base-T

The 1000Base-T SFP copper interfaces on the GLC2 and QGLC line cards require unshielded twisted pair (UTP)
copper CAT-5 cable with a bit error rate (BER) less than 10e-10. Pinouts for the RJ-45 Ethernet ports are shown in the
table below.
Table 99. 1000Base-T RJ-45 Ethernet Copper Pinouts
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Signal Level
Max TX: 0 dBm
Min TX: -9.5 dBm
Max RX: 0 dBm (saturation average power)
Min RX: -20 (typical) / -19 (max.) dBm (sensitivity average power)
Pin 1000Base-Tx 1Gbps Cat5+
1 BI DA+
2 BI DA-
3 BI DB+
4 BI DC+
5 BI DC-
6 BI DB-
7 BI DD+
8 BI DD-
RX = Receive Data TX = Transmit Data BI = BI directional data DA,
DB, DC, DD = Data Pair A, B, C, and D
Technical Specifications