Belden2177A

Product Number: 2177A

5 Serial Digital Coax, RG7, 16 AWG BC, Shielded, CMR

Low Loss Serial Digital Coax, 5 Coax, RG-7 Type 16 AWG solid bare copper conductor, gas-injected foamed high-density polyethylene insulation, Duofoil® + tinned copper braid shield (95% coverage) plus Beldfoil® with shorting fold, PVC jacket.

Availability: Global
Status: Active
Orderable items: 1

Ships from and sold by A5 IT.

Part numbers

2177A is a product family. Each item number below is a separate orderable part — colour, put-up and length differ.

Item #	Color	Putup Type	Length	Order
2177A B59N1000	Black, Matte	Reel w/Small Barrel	1,000 ft	Order online

Specifications

Product Overview

Suitable Applications	SMPTE 2081-1 6 Gb/s UHDTV, SMPTE 424M 3 Gb/s HD-SDI 1080p, SDI/HDTV Digital Video, High Definition (HD), Standard Definition (SDI)

Construction Details

Series Type	7
Insulation Table Notes	Gas Injected

Conductor

Size	16
Stranding	Solid
Nom. Diameter	0.051 in
Material	BC - Bare Copper

Insulation

Material	PE - Polyethylene (Foam)
Nom. Insulation Diameter	0.225 in (5.72 mm)
Color Code	Green, Brown, Red, Orange, Yellow

Inner Shield

Layer	Shield Type	Material	Material Trade Name	Coverage
1	Tape	Tri-Laminate (Alum+Poly+Alum)	Duofoil®	100%
2	Braid	Tinned Copper (TC)		95%
3	Tape	Bi-Laminate (Alum+Poly)	Beldfoil®	100%

Inner Jacket

Material	PVC - Polyvinyl Chloride
Nom. Diameter	0.32 in (8.1 mm)

Outer Jacket

Material	PVC - Polyvinyl Chloride
Nom. Diameter	0.968 in

Electrical Characteristics

Return Loss

Frequency	Min. Return Loss
5-1600 MHz	23 dB
1600-4500 MHz	21 dB
4500-6000 MHz	15 dB

Attenuation

Frequency	Nom. Attenuation
1 MHz	0.17 dB/100ft
3.58 MHz	0.3 dB/100ft
5 MHz	0.35 dB/100ft
6 MHz	0.38 dB/100ft
7 MHz	0.4 dB/100ft
10 MHz	0.48 dB/100ft
12 MHz	0.52 dB/100ft
25 MHz	0.74 dB/100ft
55 MHz	1.08 dB/100ft
67.5 MHz	1.2 dB/100ft
71.5 MHz	1.24 dB/100ft
88.5 MHz	1.37 dB/100ft
100 MHz	1.46 dB/100ft
135 MHz	1.7 dB/100ft
143 MHz	1.75 dB/100ft
180 MHz	1.97 dB/100ft
270 MHz	2.43 dB/100ft
360 MHz	2.83 dB/100ft
540 MHz	3.5 dB/100ft
720 MHz	4.09 dB/100ft
750 MHz	4.18 dB/100ft
1000 MHz	4.89 dB/100ft
1500 MHz	6.1 dB/100ft
2000 MHz	7.2 dB/100ft
2250 MHz	7.69 dB/100ft
3000 MHz	9.08 dB/100ft
4500 MHz	11.53 dB/100ft
6000 MHz	13.77 dB/100ft

Electricals

Nom. Conductor DCR	4 Ohm/1000ft (13 Ohm/km)
Nom. Outer Shield DCR	1.9 Ohm/1000ft (6.2 Ohm/km)
Nom. Capacitance Cond-to-Shield	16.1 pF/ft (52.8 pF/m)
Nom. Characteristic Impedance	75 Ohm
Nom. Velocity of Prop.	84%

Voltage

UL Voltage Rating	300 V RMS

Mechanical Characteristics

Max. Pull Tension	555 lbs (252 kg)
Bulk Cable Weight	372 lbs/1000ft (554 kg/km)

Temperature

Operating	-20°C To +60°C

Standards and Compliance

Environmental Suitability	Indoor/Outdoor, Indoor
Flammability / Reaction to Fire	UL1666 Vertical Shaft
NEC / UL Compliance	CMR
CEC / C(UL) Compliance	CMG.
European Directive Compliance	EU CE Mark, EU Directive 2015/863/EU (RoHS 2 amendment), EU Directive 2011/65/EU (RoHS 2), EU Directive 2012/19/EU (WEEE)
APAC Compliance	China RoHS II (GB/T 26572-2011)

Product Notes

Notes	Print legend includes sequential footage marks.

History

Update and Revision	Revision Number: 0.255 Revision Date: 02-20-2026

Resources

Belden 2177A technical datasheet