Van Damme Green series has been specifically designed for the accurate transmission of digital audio signals. Great attention has been paid to the electrical characteristics and conductor capacitance to ensure that signals remain error free even over long distances. In addition the low capacitance of this range makes Green series particularly suitable for other data signals such as RS422, RS485, DMX, Midi and timecode. It is also suitable for analogue balanced audio.

Materials

Van Damme now use a higher purity oxygen free copper for the conductors - Ultra Pure Oxygen Free Copper. The use of this material further improves the ‘solderability’ and conductivity of the conductor resulting in faithful and transparent signal reproduction.
Foam skin polyolefin is used for the conductor insulation. This special insulation is made up of individual pockets of inert gas suspended in polyolefin, resulting in a low dielectric constant (2.3) and most importantly low capacitance. The skin refers to the outer layer of the insulation, which forms during the extrusion process. This skin is harder than the layer of insulation below it ensuring that the conductor is well protected. The dielectric constant of foam skin polyolefin remains stable over a wide frequency range, essential for transmission of digital signals. Other relevant properties include good stress and temperature resistance.

For the one pair and multicores, pairs are twisted together with a tinned UPOFC drain wire and shielded with an aluminium/polyester foil screen. The 150% coverage method employed ensures that the pair is fully screened and that the drain wire remains in close contact with the conductive aluminium foil allowing interference to be effectively taken to ground.

The individual pairs, mulitcore and AES microphone cable are all oversheathed with the same soft abrasion resistant PVC composite jacket.

 

Mechanical pair specifications
Conductor	Material	Bare ultra pure oxygen free copper wire
	Stranding	28 x 0.10 (0.22mm2)	AWG 24/28
Insulation	Material	Polypropylene
	Diameter	1.00mm ± 0.10
	Colour coding	IEC 189-2 appendix A
Cabling	Type	Twisted pair
	Lay length	28mm approx.
Screen	Type	Aluminium/polyester foil
	Drain wire	19 x 0.12 (0.22mm2)	AWG 24/19

Electrical pair specifications
Description	Unit of measurement	Specified	Actual result
Resistance	Ohm/km
Conductor		<90	81.7 average
Shield		<70	67.0 average
Insulation	Mohm/km	>5000	>50000
Capacitance	pF/m
Core to core		100 nominal	99.7-100.8
Core to shield		200 nominal	184.0-188.2
Test voltage	Volt	1000 Vcd x 1	Ok

 

Overall jacket properties
	Specified	Actual result
Tensile strength	>1.25N/mm2	1.31N/mm2
Elogation	>100%	246%
Heat shock	150 °Cx h no cracks	no cracks
Material	Flexible PVC composite blue RAL 5003
Bend radius	15 x overall diameter

 

Stock code, weights and dimensions
Stock code	No of Pairs	OD (mm)
268-202-000	2	7.50
268-204-000	4	9.60
268-208-000	8	12.20
268-212-000	12	14.30
268-216-000	16	16.30
268-224-000	24	20.80
268-232-000	32	22.10
268-240-000	40	25.00
268-248-000	48	26.30