SLM-5650B Satellite Modem
Revision 2
Introduction 1–9 MN-SLM-5650B
1.3.3.3.2 10/100/1000BASE-T (Gigabit Ethernet)
Chapter 12. 10/100/1000BASE-T
(GBE) INTERFACE
The optional 10/100/1000BASE-T (Gigabit Ethernet, or GbE) interface performs a simple bridge
function and passes IP packets, unaltered, in each direction between the Local Area Network
(LAN) (10/100/1000BASE-T interface) and Wide Area Network (WAN) (SLM-5650B
modulator/demodulator).
IP packet traffic is framed via High-level Data Link Control (HDLC) encapsulation by the
SLM-5650B logic, and the SLM-5650B is both the origination and termination point for HDLC
encapsulation. HDLC CRC-16 verification is performed on all received (from WAN) HDLC frames.
1.3.3.3.3 T1/E1, T2/E2, G.703
The optional T1/E1, T2/E2, G.703 interface is designed for full duplex capability and is automatically
configured for simplex transmit or simplex receive operation The interface operates at the digital
hierarchy bit rates of 1.544, 2.048, 6.312, and 8.448 Mps as defined by ITU-T G.703.
1.3.3.3.4 Low Voltage Differential Signaling (LVDS)
The optional LVDS interface provides a physical and electrical interface between an SLM-5650B
modulator and demodulator and signal sources operating with LVDS electrical characteristics.
1.3.3.3.5 TIA/EIA-530
The native TIA/EIA-530 interface supports the physical layer requirements for TIA/EIA-530. It also
supports the TIA/EIA-422 electrical interface specification. This interface operates in duplex from
64 kbps to 20 Mbps.
1.3.3.3.6 TIA/EIA-613 High Speed Serial Interface (HSSI)
The native TIA/EIA-613 interface supports the physical layer requirements for TIA/EIA-613. It also
supports the TIA/EIA-612 electrical interface specification. This interface operates in duplex from 64
kbps to 51.84 Mbps.
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