Product Hierarchy
Product Hierarchy

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

Low Loss Serial Digital Coax, Plenum-CMP, Sub-Miniature 23 AWG solid bare copper conductor, foam FEP core, Duofoil®, +95% tinned copper braid, Flamarrest® jacket

Product Overview

Suitable Applications: SDI/HDTV Digital Video, High Definition (HD), Standard Definition (SDI) and Digital Audio Equipment in Professional & Commercial Applications such as TV Stations, Stadiums & Arenas, Convention Center, and other large facilities requiring high quality digital video transmissions, Plenum Applications

Physical Characteristics (Overall)

AWGStrandingMaterialNominal DiameterNo. of Coax
23SolidBC - Bare Copper0.023 in1
Conductor Count: 1
MaterialNominal Diameter
FEP - Fluorinated Ethylene Propylene (Foam)0.102 in
Insulation, Table Note: Gas Injected
Outer Shield Material
TypeLayerMaterialMaterial Trade NameCoverage [%]
Tape1Alum / Poly / AlumDuofoil®100 %
Braid2TC - Tinned Copper95 %
Outer Jacket Material
MaterialMaterial Trade NameNominal Diameter
PVC-LS - Polyvinyl Chloride (Low Smoke)Flamarrest®0.159 in

Electrical Characteristics

Conductor DCR
Nominal Conductor DCRNominal Outer Shield DCR
20.1 Ohm/1000ft3.7 Ohm/1000ft
Nom. Capacitance Conductor to Shield
16.6 pF/ft
Nominal Inductance
0.3 µH/ft
Nominal Characteristic Impedance
75 Ohm
Return Loss (RL)
Frequency [MHz]Minimum Return (RL)
5 - 1600 MHz23 dB
1600 - 4500 MHz21 dB
4500 - 6000 MHz15 dB
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
1 MHz0.38 dB/100ft
3.6 MHz0.76 dB/100ft
10 MHz1.3 dB/100ft
71.5 MHz3.1 dB/100ft
135 MHz4.1 dB/100ft
270 MHz5.8 dB/100ft
360 MHz6.9 dB/100ft
540 MHz8.7 dB/100ft
720 MHz10.3 dB/100ft
750 MHz10.5 dB/100ft
1000 MHz12.4 dB/100ft
1500 MHz15.7 dB/100ft
2250 MHz19.9 dB/100ft
3000 MHz23.8 dB/100ft
4500 MHz30.3 dB/100ft
6000 MHz36.4 dB/100ft
Nominal DelayNominal Velocity of Propagation (VP) [%]
1.27 ns/ft80 %
UL Voltage Rating
300 V RMS
Electrical Characteristics Notes: Return Loss: Fixed bridge and termination

Temperature Range

UL Temp Rating: 75°C
Operating Temp Range: -20°C To +75°C

Mechanical Characteristics

UV Resistance: No
Bulk Cable Weight: 21 lbs/1000ft
Max Recommended Pulling Tension: 40 lbs
Min Bend Radius/Minor Axis: 1.5 in


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

Applicable Environmental and Other Programs

Environmental Space: Indoor - Plenum
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): 2008-03-28
MII Order #39 (China RoHS): Yes


Suitability - Aerial: No
Suitability - Burial: No
Suitability - Hazardous Locations: No
Suitability - Indoor: Yes
Suitability - Outdoor: No
Suitability - Sunlight Resistance: No

Flammability, LS0H, Toxicity Testing

UL Flammability: NFPA 262
CSA Flammability: FT6
ISO/IEC Flammability: IEC 60332-1-2
UL voltage rating: 300 V RMS


Plenum (Y/N): Yes

Part Number

Non-Plenum Number: 1855A
Item #ColorPutup TypeLengthUPC
1855P 0101000BlackReel1,000 ft612825124771
1855P 0061000Blue, LightReel1,000 ft612825124740
1855P 0011000BrownReel1,000 ft612825124702
1855P 0081000GrayReel1,000 ft612825124764
1855P N3U1000Green, MilReel1,000 ft612825124696
1855P 8771000NaturalReel1,000 ft612825124788
1855P 0031000OrangeReel1,000 ft612825124726
1855P 0021000RedReel1,000 ft612825124719
1855P 0071000VioletReel1,000 ft612825124757
1855P 0041000YellowReel1,000 ft612825124733

Product Notes

Notes: Print legend includes sequential footage marks.


Update and Revision: Revision Number: 0.289 Revision Date: 04-28-2020
Date: 2008-03-28
Broadcast Solutions Guide
TB65: Digital Studio Cable Guide
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