Product Hierarchy
Product Hierarchy

1855A - Serial Digital Coax, Sub-miniature, #23 Solid BC, Foil + 95% TC braid, CMR

Low Loss Serial Digital Coax, Riser-CMR, Sub-Miniature 23 AWG solid bare copper conductor, foam HDPE core, Duofoil, +95% tinned copper braid, PVC jacket

Product Overview

Environmental Space: Indoor - Riser
Suitable Applications: SMPTE 2081-1 6 Gb/s UHDTV, SMPTE 424M 3 Gb/s HD-SDI 1080P

Physical Characteristics (Overall)

AWGStrandingMaterialNominal DiameterNo. of Coax
23SolidBC - Bare Copper0.023 in1
Conductor Count: 1
MaterialNominal Diameter
Gas-injected FHDPE - Foam High Density Polyethylene0.102 in
Outer Shield Material
TypeLayerMaterialMaterial Trade NameCoverage [%]
Tape1Aluminum/Polyester/AluminumDuofoil®100 %
Braid2TC - Tinned Copper95 %
Outer Jacket Material
MaterialNominal Diameter
PVC - Polyvinyl Chloride0.159 in

Electrical Characteristics

Conductor DCR
Nominal Conductor DCROuter Conductor DCR
20.1 Ohm/1000ft3.7 Ohm/1000ft
Nom. Capacitance Conductor to Shield
16.3 pF/ft
Nominal Inductance
0.107 µH/ft
Nominal Characteristic Impedance
75 Ohm
Return Loss (RL)
Frequency [MHz]Minimum Return (RL)
5 MHz - 1600 MHz23 dB
1600 MHz - 4500 MHz21 dB
4500 MHz - 6000 MHz15 dB
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
1 MHz0.39 dB/100ft
3.58 MHz0.78 dB/100ft
5 MHz0.92 dB/100ft
6 MHz1.00 dB/100ft
7 MHz1.08 dB/100ft
10 MHz1.2 dB/100ft
12 MHz1.3 dB/100ft
25 MHz1.8 dB/100ft
67.5 MHz2.83 dB/100ft
71.5 MHz2.93 dB/100ft
88.5 MHz3.22 dB/100ft
100 MHz3.39 dB/100ft
135 MHz3.84 dB/100ft
143 MHz4.00 dB/100ft
180 MHz4.41 dB/100ft
270 MHz5.44 dB/100ft
360 MHz6.34 dB/100ft
540 MHz7.85 dB/100ft
720 MHz9.15 dB/100ft
750 MHz9.31 dB/100ft
1000 MHz10.89 dB/100ft
1500 MHz13.38 dB/100ft
2000 MHz15.64 dB/100ft
2250 MHz16.68 dB/100ft
3000 MHz19.65 dB/100ft
4500 MHz24.35 dB/100ft
6000 MHz28.97 dB/100ft
Nominal DelayNominal Velocity of Propagation (VP) [%]
1.24 ns/ft82 %
UL Voltage Rating
300 V RMS
Electrical Characteristics Notes: TDR Impedance: 75 +/- 1.5 Ohms
Other Electrical Characteristic 2: Return Loss: Fixed bridge and termination

Temperature Range

UL Temp Rating: 75°C
Operating Temp Range: -30°C To +75°C

Mechanical Characteristics

UV Resistance: Yes
Bulk Cable Weight: 17 lbs/1000ft
Max Recommended Pulling Tension: 33 lbs
Min Bend Radius/Minor Axis: 1.6 in


NEC/(UL) Specification: CMR
CEC/C(UL) Specification: CMG
CPR Euroclass: Eca
RG Type: Mini 59/U Type

Applicable Environmental and Other Programs

EU Directive 2000/53/EC (ELV): Yes
EU Directive 2003/96/EC (BFR): Yes
EU Directive 2011/65/EU (ROHS II): Yes
EU Directive 2012/19/EU (WEEE): Yes
EU Directive Compliance: EU Directive 2003/11/EC (BFR)
EU CE Mark: Yes
EU RoHS Compliance Date (yyyy-mm-dd): 2004-01-01
CA Prop 65 (CJ for Wire & Cable): Yes
MII Order #39 (China RoHS): Yes


Suitability - Aerial: Yes - Black only, when supported by messenger wire
Suitability - Burial: No
Suitability - Hazardous Locations: No
Suitability - Indoor: Yes
Suitability - Outdoor: Yes - Black only

Flammability, LS0H, Toxicity Testing

UL Flammability: UL1666 Vertical Shaft
CSA Flammability: FT4
ISO/IEC Flammability: IEC 60332-1-2
UL voltage rating: 300 V RMS


Plenum (Y/N): No
Plenum Number: 1855P

Part Number

Related Parts: 1855ABHD3
Item #ColorUPCLengthFootnote
1855A 0101000Black6128253585031,000 ftC
1855A 010500Black612825356950500 ft
1855A 010N1000Black1,000 ft
1855A.00500Black500 m
1855A 010Z1000Black6128254349931,000 ft
1855A 0105000Black6128254361265,000 ft
1855A 0061000Blue, Light6128253584591,000 ftC
1855A 006N1000Blue, Light1,000 ft
1855A 006Z1000Blue, Light6128254349551,000 ft
1855A 0065000Blue, Light6128254360725,000 ft
1855A 0011000Brown6128253568511,000 ftC
1855A 001N1000Brown1,000 ft
1855A 0015000Brown6128254360275,000 ft
1855A 0081000Gray6128253585101,000 ftC
1855A 008N1000Gray1,000 ft
1855A 0085000Gray6128254360965,000 ft
1855A N3U1000Green, Mil6128253584801,000 ftC
1855A N3UN1000Green, Mil1,000 ft
1855A N3UZ1000Green, Mil6128254350061,000 ft
1855A N3U5000Green, Mil6128254361335,000 ft
1855A 0031000Orange6128253568441,000 ftC
1855A 003N1000Orange1,000 ft
1855A 003Z1000Orange6128254349311,000 ft
1855A 0035000Orange6128254360415,000 ft
1855A 0021000Red6128253584731,000 ftC
1855A 002N1000Red1,000 ft
1855A 002Z1000Red6128254349171,000 ft
1855A 0025000Red6128254360345,000 ft
1855A 0071000Violet6128253568371,000 ftC
1855A 007N1000Violet1,000 ft
1855A 007Z1000Violet6128254349621,000 ft
1855A 0075000Violet6128254360895,000 ft
1855A 0091000White6128253584971,000 ftC
1855A 009N1000White1,000 ft
1855A 009Z1000White6128254349861,000 ft
1855A 0095000White6128254361025,000 ft
1855A 0041000Yellow6128253584661,000 ftC
1855A 004N1000Yellow1,000 ft
1855A 004Z1000Yellow6128254349481,000 ft
1855A 0045000Yellow6128254360655,000 ft
Footnote: C - CRATE REEL PUT-UP.

Product Notes

Notes: Print legend includes sequential footage marks.


Update and Revision: Revision Number: 0.290 Revision Date: 08-22-2019
Date: 2004-01-01
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