Product Hierarchy
Product Hierarchy

7838A - T1/DS1 Central Office, 2 Pair 22 AWG, CM

2 Twisted Pair 22 AWG solid tinned copper conductors, Datalene® insulation, individually shielded with 100% Beldfoil® shield, 24 AWG solid tinned copper drain wire each pair, PVC jacket, CM rated.

Product Overview

Suitable Applications: T1, DS1, Data

Physical Characteristics (Overall)

AWGStrandingMaterialNominal DiameterNo. of Pairs
22SolidTC - Tinned Copper0.025 in2
MaterialMaterial Trade NameNominal Diameter
PE - Polyethylene (Foam)Datalene®0.072 in
Color Chart
1Blue & White/Blue
2Orange & White/Orange
Inner Shield Material
TypeMaterialMaterial Trade NameCoverage [%]Drainwire MaterialDrainwire DiameterDrainwire AWGDrainwire Construction n x DDrainwire Position
TapeBi-Laminate (Alum+Poly)Beldfoil®100%TC - Tinned Copper0.021 in24SolidOver shield tape, under polyester separator tape
Outer Jacket Material
MaterialNominal Diameter
PVC - Polyvinyl Chloride.202 x .360 in

Electrical Characteristics

Conductor DCR
Nominal Conductor DCR
16.7 Ohm/1000ft
Nom. Capacitance Conductor to Conductor
14.5 pF/ft
Nominal Inductance
0.24 µH/ft
Max. Differential Impedance (1MHz)
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
772 kHz4.3 dB/100ft
Nominal Delay
1.41 ns/ft
Max. Recommended Current [A]
2.25 Amps per Conductor at 25ºC
UL Voltage Rating
300 V RMS

Temperature Range

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

Mechanical Characteristics

Bulk Cable Weight: 34 lbs/1000ft
Max. Pull Tension: 34 lbs
Min Bend Radius/Minor Axis: 2 in


NEC/(UL) Compliance: CM
CEC/C(UL) Compliance: CM

Applicable Environmental and Other Programs

Environmental Space: Indoor Rated (Not Riser or Plenum)
EU Directive 2000/53/EC (ELV): Yes
EU Directive 2003/11/EC (BFR): Yes
EU Directive 2011/65/EU (ROHS II): Yes
EU Directive 2012/19/EU (WEEE): Yes
EU Directive 2015/863/EU: Yes
EU Directive Compliance: Yes
EU RoHS Compliance Date (yyyy-mm-dd): 2004-01-01
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: UL1685 UL Loading
UL voltage rating: 300 V RMS


Plenum (Y/N): No

Part Number

Item #ColorPutup TypeLengthUPC
7838A 0601000ChromeReel1,000 ft612825190127
7838A 0602000ChromeReel2,000 ft612825190134
7838A 0605000ChromeReel5,000 ft612825190141
Footnote: C - CRATE REEL PUT-UP.

Product Notes

Notes: Single conductors are dual insulated. The outer layer of insulation must be stripped off before attaching modular connectors. Use a stripping tool such as Cooper Tools Xcelite model 103-S, or equivalent with a mechanical stop to avoid nicking the inner insulation. RJ-45 Compatible.


Update and Revision: Revision Number: 0.198 Revision Date: 08-25-2020
Date: 2004-01-01
No accessories are available for this product