Product Hierarchy
Product Hierarchy

734C1 - DS-3 and DS-4, 734C Series, #20-1 SPC Coax, CMR/CMG

20 AWG solid .032" silver-plated copper conductors, gas-injected FHDPE insulation, Duobond®; tinned copper braid shield (85% coverage), inner PVC jacket, overall PVC jacket with ripcord.

Product Overview

Suitable Applications: Central Office wiring for DS3 transmissions.

Physical Characteristics (Overall)

AWGStrandingMaterialNominal DiameterNo. of Coax
20SolidSCCS - Silvered Copper Covered Steel0.032 in1
Conductor Count: 1
MaterialNominal Diameter
PE - Polyethylene (Foam)0.148 in
Table Notes: Gas Injected
Inner Shield
TypeLayerMaterialMaterial Trade NameCoverage [%]
Tape1Tri-Laminate (Alum+Poly+Alum)Duobond®100%
Braid2Tinned Copper (TC)85%
Table Notes: Tape bonded to dielectric
Inner Jacket
MaterialNominal Diameter
PVC - Polyvinyl Chloride0.235 in
Outer Shield
No Shield
Outer Jacket
MaterialNominal DiameterRipcord
PVC - Polyvinyl Chloride0.235 inYes

Electrical Characteristics

Conductor DCR
Nominal Conductor DCRNominal Conductor DCR Conductor ResistanceNominal Inner Shield DCROuter Conductor DCR
10 Ohm/1000ft10 Ohm/1000ft2.4 Ohm/1000ft2.4 Ohm/1000ft
Nom. Capacitance Conductor to Shield
16.8 pF/ft
Nominal Inductance
0.097 µH/ft
Nominal Characteristic Impedance
75 Ohm
Return Loss (RL)
Frequency [MHz]Minimum Return (RL)
5-150 MHz32 dB
Nominal DelayNominal Velocity of Propagation (VP) [%]
1.27 ns/ft80%
High Frequency
Frequency [MHz]Max. Insertion Loss (Attenuation)
1 MHz0.28 dB/100ft
5 MHz0.59 dB/100ft
10 MHz0.8 dB/100ft
22.5 MHz1.18 dB/100ft
50 MHz1.82 dB/100ft
100 MHz2.6 dB/100ft
150 MHz3.22 dB/100ft
UL Voltage Rating
300 V RMS

Temperature Range

Operating Temperature Range: -40°C To +75°C

Mechanical Characteristics

Bulk Cable Weight: 30 lbs/1000ft
Max. Pull Tension: 60 lbs
Min Bend Radius (Overall): 2.5 in


NEC/(UL) Compliance: CMR
CEC/C(UL) Compliance: CMG
RG Type: 59
Other Specification: Telcordia Specification GF-139-CORE; SBC ENTERPRISE - SBC-002-316-019, ISSUE 4

Applicable Environmental and Other Programs

Environmental Space: Indoor - Riser
EU Directive 2000/53/EC (ELV): Yes
EU Directive 2003/11/EC (BFR): Yes
EU Directive 2011/65/EU (RoHS 2): Yes
EU Directive 2012/19/EU (WEEE): Yes
EU Directive 2015/863/EU (RoHS 2 amendment): Yes
EU Directive Compliance: EU Directive 2003/11/EC (BFR)
EU CE Mark: Yes
MII Order #39 (China RoHS): Yes


Suitability - Indoor: Yes

Flammability, LS0H, Toxicity Testing

UL Flammability: UL1666 Vertical Shaft
CSA Flammability: FT4
UL voltage rating: 300 V RMS


Plenum (Y/N): No

Related Part Numbers

Item #ColorPut-Up TypeLengthUPC
734C1 0081000GrayReel1,000 ft612825184225
734C1 0083000GrayReel3,000 ft612825184232
734C1 0085000GrayReel5,000 ft612825184256
Footnote: C - CRATE REEL PUT-UP.


Update and Revision: Revision Number: 0.331 Revision Date: 04-08-2022
Date: 2007-10-17
No accessories are available for this product