XtendLan XL-GDB101E, Руководство пользователя

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XtendLan XL-GDB series User’s Guide
1.2.2 System Interface
The XL-GDB system supports four high-speed digital interfaces:
•
V.35, model XL-GDB101V
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RS-449/EIA-530, model XL-GDB101S
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Ethernet Remote Bridge (10/100 BaseT Port), model XL-GDB101F
•
E1 (G.703), model XL-GDB101E and XL-GDB102E
•
T1 , model XL-GDB101T and XL-GDB102T
Configurable items vary depending on the type of interface being used. System alarms,
diagnostics, and transmission line history will also differ depending on the interface type.
•
Data Rate: nx64 + ix8 Kbps, 1<=n<=36 and 0<=i<=7
，
64 ~ 2312 Kbps.
•
Symbol Rate: (Data rate+8000)/3 symbol/sec.
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Modulation Method: 16-TCPAM, G.SHDSL
•
Impedance: 135 ohms.
1.2.2.1 V.35
The XL-GDB101V supports a V.35 interface with the following characteristics:
•
Bit Rate: Nx64Kbps, 1<=N<=36
，
192, 256, 384, 512, 768, 1024, 1168, 1280, 1544, 2048,
2312 Kbps.
•
Clock Source: Internal, DSL or DTE
，
•
The I/O connectors: The pin lists for the interface connectors appear in Appendix A.
1.2.2.2 Ethernet Remote Bridge
The XL-GDB101F provides an Ethernet Remote Bridge interface. The Ethernet Remote Bridge
(IEEE standard 802.3/802.3u) provides one port connected to an Ethernet LAN running at
10/100 Mbps and the DSL port connected to the WAN at up to 2.304 Mbps. The bridge allows
an individual Ethernet computer or an Ethernet LAN to connect to the network through the
XL-GDB. in addition, it also has following features:
•
Operate as a self-learning bridge specified in the IEEE 802.1d full protocol transparent
bridging function.
•
Supporting up to 4096 MAC learning addresses.
•
Supporting Bridge filter function
1.2.2.3 EIA-530/RS-449
The XL-GDB101S supports both RS-449 and EIA-530. These two interfaces have the same
characteristics, which listed below: Both RS-449 and EIA-530 are synchronous, high-speed digital
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