UL2835 Specification

Cat5e cable (category 5 cable) is a twisted pair cable for computer networks. Since 2001, the variant commonly in use is the Category 5e specification (Cat 5e). The cable standard provides performance of up to 100 MHz and is suitable for most varieties of Ethernet over twisted pair up to 1000BASE-T (Gigabit Ethernet). Cat 5 is also used to carry other signals such as telephony and video.

This cable is commonly connected using punch-down blocks and modular connectors. Most Category 5 cables are unshielded, relying on the balanced line twisted pair design and differential signaling for noise rejection.

For UL style, it will put under UL2835, the details of UL2835 is as follows:-




APPLIANCE WIRING MATERIAL

Subj.758 Section 2     Page 2835       Issued:1976-10-28

Revised:2013-02-25

Style 2835  Multiple-Conductor Cable Using Extruded Non-Integral Jacket

Rating	60 deg C, 30 Vac, Cable flame for Use No. 1B and 2B, Horizontal flame for Use No. 1A and 2A.
Conductor	40 AWG minimum.
Insulated Conductor	Material not specified for Use No. 1A or 1B. Labeled or complies with manufacturer's Procedure for Use No. 2A or 2B.
Assembly	Two or more conductors, twisted pairs, or groups of twisted conductors. The conductors may be laid parallel or twisted together to form a flat, oval, or round cable construction. Lay not specified. Barrier layer and/or fillers optional. May use same or mixed AWG sizes. Manufacturer shall maintain a complete description of each assembly.
Covering	Optional. Extruded PVC, 5 mils minimum thickness at any point, over the assembly or groups of singles.
Shield	Optional. May be over one or more of the insulated conductors or applied over the assembly.
Jacket	Extruded PVC. If parallel construction is rippable, the measurements are made after ripping.

Diameter of cable under jacket*	Minimum average thickness	Minimum thickness at any point
0.250 inch or less (1A	2A only)	15 mils	13 mils
0.250 inch or less (1B	2B only)	30 mils	27 mils
0.251-0.424 inch	30 mils	27 mils
0.425-0.700 inch	60 mils	48 mils
0.701-1.500 inch	80 mils	64 mils
1.501-2.500 inch	110 mils	88 mils
2.501 inch or larger	140 mils	112 mils

* = Major diameter if flat or oval construction.

Standard	Appliance Wiring Material UL 758.
Marking	General.
Use	Use No. 1A:, Internal wiring in Class 2 circuits of electronic equipment where each end is terminated in connectors.; Use No. 1B:, CABLES - using 30 mils or greater jacket thickness only: External interconnection or internal wiring in Class 2 circuits of electronic equipment where each end is terminated in connectors.; Use No. 2A:, Internal wiring in Class 2 circuits of electronic equipment where not routed along walls, floors, or other abuse areas.; Use No. 2B:, CABLES - using 30 mils or greater jacket thickness only: External interconnection or internal wiring in Class 2 circuits. ¤   ¤   ¤ Please contact : ctloo@pan-intl.com