H3C Technologies H3C SR6600 - Manual (Page 72)

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Appendix C Cables
The H3C SR6602 supports various types of interface modules. The port types of the interface modules
vary by model.
For how to use cables to connect the ports of different interface modules, see the H3C SR6600 Routers
Interface Module Guide.
Table 27 Cables
Cable Applicable port type Description
Ethernet twisted pair cable RJ-45 Ethernet port
Connects the RJ-45 Ethernet port of
the router for data transmission.
Optical fiber SFP port
Connects the fiber port of the router
for data transmission.
E1 interface cable E1 interface
Connects the E1 interface of the
router for data transmission.
T1 interface cable T1 interface
Connects the T1 interface of the
router for data transmission.
CE3/CT3 interface cable CE3/CT3 interface
Connects the CE3/CT3 interface of
the router for data transmission.
Serial port cable Serial port
Connects the serial port of the
router for data transmission.
Ethernet twisted pair cable
Introduction
An Ethernet twisted pair cable consists of four pairs of insulated copper wires twisted together. Every
wire uses a different color, and has a diameter of about 1 mm (0.04 in). A pair of twisted copper cables
can cancel the electromagnetic radiation of each other, and reduce interference of external sources. An
Ethernet twisted pair cable mainly transmits analog signals and is advantageous in transmitting data
over shorter distances. It is the commonly used transmission media of the Ethernet. The maximum
transmission distance of the Ethernet twisted pair cable is 100 m (328.08 ft). To extend the transmission
distance, you can connect two twisted pair cable segments with a repeater. At most four repeaters can
be added, which means five segments can be joined together to provide a transmission distance of 500
m (1640.42 ft).
Ethernet twisted pair cables can be classified into category 3, category 4, category 5, category 5e,
category 6, and category 7 cables based on performance. In LANs, category 5, category 5e, and
category 6 are commonly used.
Table 28 Description of commonly used Ethernet twisted pair cables
Type Description
Category 5 Suitable for data transmission at a maximum speed of 100 Mbps