ATMM50 - CAT3 Backbone, 50pr, Armor Shield, PVC Jkt, CMR
Networking & Data Cable
(685)Industrial Ethernet Cable
(178)Enterprise Category Cable
(147)Industrial Protocol / Data Bus Cable
(358)Audio Cable
(528)Digital
(94)Analog
(136)Microphone
(43)Nurse Call
(8)Audio Over Internet Protocol (IP)
(7)Speaker & Control
(290)Video Cable
(270)75 Ohm SDI Coax
(100)Camera Cable
(53)CATV & Satelite
(52)CCTV & Security
(26)RGB Cable
(42)Video Over Internet Protocol (IP) Cable
(10)Coax & Triax Cable
(343)50 Ohm Transmission Cable
(64)75 Ohm SDI Coax
(95)CATV & Satelite Cable
(45)Triax Cable
(17)DS3 & DS4 Cable
(18)Conformable Cable
(11)Mil-Spec Cable
(1)CCTV & Security Cable
(26)Computer and Instrumentation Cable
(10)Multi-Media Cable
(33)Fiber Cable
(13372)Indoor Fiber Cable
(1440)Indoor/Outdoor Fiber Cable
(6903)Outdoor Fiber Cable
(4729)SMPTE Cable
(23)Tactical Fiber Cable
(314)Flexible Automation Cable
(3164)600V Control (AWM Style) Cable
(74)300V (PLTC) & 600V (TC-ER) Control Cable
(82)Flex Data Cable
(70)Vision Systems
(5)Flex VFD Cable
(13)Tray Cable
(809)Instrumentation Cable
(340)UL 300V PLTC/PLTC-ER Cable
(197)UL 600V TC/TC-ER Pairs/Triads
(114)UL Thermocouple
(30)CSA ACIC Cable
(30)Control / Power Cable
(482)VFD Cable
(244)Digital Electricity
(48)Hybrid Fiber-Copper Cable
(200)Rolling Stock Cable
(157)Safety, Sound, & Security Cable
(716)Audio, Sound, & Control Cable
(226)Access Control Cable
(79)Fire Alarm Cable
(91)Nurse Call
(2)Security & Alarm Cable
(277)Surveillance Cable
(38)Connectors & Outlets
(3340)Modular Couplers
(12)Modular Plugs
(30)Receptacles
(7)Coax Connectors
(87)12 GHz BNC Connectors
(15)6 GHz BNC Connectors
(17)ProSNS Connectors
(37)Double Bubble Connectors
(18)Multi Media Modules
(15)Copper Connector Accessories
(14)Fiber Connectors
(62)Mechanical Connectors
(20)Fiber Connector Accessories
(7)Adapters
(5)Fusion Splice-On Connectors
(30)Valve Connectors
(737)Type A
(561)Type A Field Attachables
(352)Type A Receptacles
(49)Type A Single-Ended Cordsets
(87)Type A Double-Ended Cordsets
(43)Type A Accessories
(26)Type A Adaptor
(4)Type B
(99)Type B Field Attachables
(48)Type B Receptacles
(5)Type B Single-Ended Cordsets
(26)Type B Double-Ended Cordsets
(19)Type B Adaptor
(1)Type C
(77)Workstation Outlets
(114)KeyConnect Outlets
(14)MDVO-Style Outlets
(12)MediaFlex System
(17)Multi Media Modules
(28)Workstation Consolidation
(35)Hybrid Termination Box
(8)Cross Connect Systems
(18)Category 6A Cross Connect Systems
(3)Category 6 Cross Connect Systems
(9)Category 5E Cross Connect Systems
(6)Power Connectors
(976)M12 Power
(425)Field Attachables
(8)Receptacles
(60)Single-Ended Cordsets
(197)Double-Ended Cordsets
(148)Splitter
(12)NR Series
(31)ST Series
(59)CA Series
(14)7/8", 1", 1 1/8" Series
(275)Field Attachables
(34)Receptacles
(86)Tees, Reducers & Adapters
(10)Single-Ended Cordsets
(86)Double-Ended Cordsets
(54)Accessories
(5)M23 Circular Connectors
(56)Mini Power
(59)Receptacles
(12)Tees, Reducers & Adapters
(10)Single-Ended Cordsets
(16)Double-Ended Cordsets
(21)G Series
(57)Sensor Actuator Connectors
(979)M12
(718)Field Attachables
(89)Receptacles
(147)Single-Ended Cordsets
(249)M12-M12 Cordsets
(167)M12-M8 Cordsets
(66)M8
(302)Field Attachables
(4)Receptacles
(50)Single-Ended Cordsets
(121)M8-M8 Cordsets
(63)M8-M12 Cordsets
(64)Accessories
(18)M8 and M12 Splitter
(5)Data Connectors
(230)Adapter and Splitter
(4)Double-Ended Cordsets
(122)Field Attachables
(16)Receptacles
(29)Single-Ended Cordsets
(59)SPE Connectors
(51)Assemblies & Cordsets
(1074)Fiber Patch Cords
(453)Double-Ended Cordsets
(76)Pigtails
(16)Single-Ended Cordsets
(1)Pre-Terminated Assemblies
(486)AV Assemblies
(10)Patch Panels & Components
(770)Copper Patch Panels
(82)Preloaded Coupler Patch Panels
(2)Fiber Patch Panels
(76)Fiber Cassettes
(440)Modular (Empty) Panels
(6)Adapter Frames
(84)Adapter Strips
(13)Fiber Wall Mounts
(11)Patch Panel Accessories
(45)Broadcast Patch Panels
(1)Industrial Networking
(934)SPIDER Fast/Gigabit Switches
(42)Managed Switches
(264)BOBCAT
(115)BEETLE
(1)BXP
(8)BXS
(8)GECKO Switches
(6)LEMUR
(6)MSP – Modular Gigabit Switches
(21)MSP – The Modular Gigabit Switches (Layer 2/3)
(12)MSM - Configurable Media Modules for MSP Switches
(9)RS20/30/40 Switches
(57)RED25 Switches
(4)RSP/RSPS/RSPE Switches
(38)Rack Mount Switches
(102)DRAGON MACH4000
(16)GREYHOUND 1020/1030
(11)GREYHOUND 1040
(23)GREYHOUND 2000
(1)GREYHOUND 105/106
(13)GREYHOUND 103
(8)MACH100
(23)MACH1020/1030
(3)MACH1040
(4)IP65/IP67 Switches & Routers
(46)Embedded Ethernet
(4)Security & Firewalls
(29)Edge Device
(4)Wireless
(134)Cellular Routers
(10)Wireless LAN Devices
(20)BAT450-F WLAN Access Points
(2)BAT867 - Industrial Wireless Access Points
(3)BAT-C2
(5)Dragonfly Railway Wi-Fi 6 Radios
(8)OpenBAT-R / -F
(2)Wireless LAN Controller
(1)Antennas
(42)Accessories
(16)Industrial and IIoT-Routers
(11)Railway Routers
(16)Vehicle Routers
(18)Software
(90)Network Management
(29)Software Tools
(3)BHDO & BHDM
(4)Belden Horizon
(10)CloudRail
(4)Device Software
(35)Classic Switch Software
(15)HiOS – Hirschmann Operating System
(16)HiLCOS Software
(1)HiEOS - Hirschmann Entry Operating System
(1)OpEdge Software
(1)OWL Software
(1)macmon Network Access Control
(5)Accessories
(153)Transceivers
(60)Fast Ethernet SFP Transceiver
(14)Fast Ethernet Bi-Directional SFP Transceivers
(6)Gigabit Ethernet SFP Transceiver
(15)Gigabit Ethernet Bi-Directional SFP Transceiver
(12)2.5 Gigabit Ethernet SFP Transceiver
(6)10 Gigabit Ethernet XFP and SFP+ Transceivers
(6)DAC cable
(1)Auto-Configuration Adapter – ACA
(10)Connectors
(5)Mounting Accessories
(19)MIPP
(7)Miscellaneous Accessories
(10)Power Supplies and Cables
(18)Power over Ethernet (PoE) Injector
(4)Serial to Ethernet converters
(1)Terminal and Adapter Cables
(8)Wireless Accessories
(12)FiberINTERFACES
(28)IT Switch
(45)MTS8000 Core Switch
(24)MTS2900 Core Switch
(3)MTS2800 L3 Switch
(9)MTS2700 L3 PoE Switch
(7)MTS2600 L2 Switch
(2)Enterprise Ethernet
(34)SFP
(24)Stacking Cable
(5)Racks & Cabinets
(189)Server Cabinets
(3)Wall Mount Cabinets
(11)Seismic Cabinets
(12)Consolidation-MDU Enclosures
(2)Cabinet Individual Component Ordering Options
(20)Zone Enclosures
(3)Racks
(29)2 Post Rack
(12)Aluminum Knockdown
(1)Swing Rack
(1)Steel Knockdown
(4)Steel Welded
(2)Value Series Rack Kit
(4)4 Post Rack
(3)Seismic Rack
(3)Wall Mount Rack
(11)Power Distribution & Climate Monitoring
(1)Heat Containment
(8)Security & Access Control
(4)Cable Management
(32)Cable Runways
(32)Rack & Cabinets Accessories
(31)Shelves
(1)Cabinet Accessories
(19)Lacing Accessories
(6)Lacing/PDU Mounting Panels
(1)Bottom Seal Skirts
(2)Cabinet Caster Kit
(1)Frame & Rail Brush Kits
(3)Front to Rear Cable Manager
(1)Top Cable Trough
(1)Vertical Finger Managers
(2)Filler (Blanking) Panels
(3)Fans
(1)Grounding & Bonding
(3)Mounting Hardware
(1)PDU Accessories
(1)Zero U Vertical Patch Panel
(2)Termination Tools & Accessories
(107)Fiber Splicers & Tool Kits
(31)Label & Identification
(7)Fanout & Breakout Kits
(7)Connectivity Accessories
(2)Outlet & Hardware Accessories
(28)I/O Systems
(204)Ethernet I/O Modules
(38)IO-Link Masters and Devices
(41)Fieldbus I/O Modules
(10)Passive Distribution Boxes
(109)Safety I/O Modules
(4)CAT3, ATMM/ARMM, 50-Pair, F/UTP-foil shield , Riser-CMR, Premise Backbone Cable, 24 AWG solid bare copper conductors, foam polyolefin insulation with PVC skin, ripcord, corrugated aluminum shield bonded to overall PVC jacket
| Suitable Applications: | Premise Backbone Cable |
| Size | Stranding | Material | No. of Pairs |
|---|---|---|---|
| 24 | Solid | BC - Bare Copper | 50 |
| Material | Color Code |
|---|---|
| PO - Polyolefin (Foam) | White & Blue, White & Orange, White & Green, White & Brown, White & Slate, Red & Blue, Red & Orange, Red & Green, Red & Brown, Red & Slate, Black & Blue, Black & Orange, Black & Green, White/Blue (12 Pr), White/Blue (13 Pr), White/Orange (12 Pr), White/Orange (13 Pr) |
| White/Blue (12), White/Blue (13), White/Orange (12), White/Orange (13) |
| Material |
|---|
| Aluminum |
| Armor Type & Material | Armor Thickness |
|---|---|
| CAT - Corrugated Aluminum Tape | .008 in (0.20 mm) |
| Material | Nom. Diameter | Ripcord |
|---|---|---|
| PVC - Polyvinyl Chloride | 0.660 in | Yes |
| Max. Conductor DCR | Max. Capacitance Unbalance |
|---|---|
| 93.8 Ohm/km (28.6 Ohm/1000ft) | 330 pF/100m |
| Frequency | Max. Delay | Max. Delay Skew | Nom. Velocity of Prop. |
|---|---|---|---|
| 16 MHz | 543 ns/100m | 45 ns/100m | 68% |
| Frequency [MHz] | Max. Insertion Loss (Attenuation) [dB/100m] | Min. NEXT [dB] | Min. PSNEXT [dB] | Min. ACR [dB] | Min. PSACR [dB] | Min. RL (Return Loss) [dB] | Max./Min. Fitted Impedance |
|---|---|---|---|---|---|---|---|
| 0.772 | 2.2 | 47.0 | 43.0 | 50.1 | 46.1 | 100 +/- 15 | |
| 1.0 | 2.6 | 45.0 | 41.0 | 47.8 | 43.8 | 12.0 | 100 +/- 15 |
| 4.0 | 5.6 | 36.0 | 32.0 | 36.0 | 32.0 | 12.0 | 100 +/- 15 |
| 8.0 | 8.5 | 31.0 | 27.0 | 28.3 | 24.3 | 12.0 | 100 +/- 15 |
| 10.0 | 9.7 | 30.0 | 26.0 | 26.2 | 22.2 | 12.0 | 100 +/- 15 |
| 16.0 | 13.1 | 27.0 | 23.0 | 20.1 | 16.1 | 10.0 | 100 +/- 15 |
| UL Voltage Rating |
|---|
| 300 V RMS |
| UL Temperature | Operating | Installation | Storage |
|---|---|---|---|
| 60°C | -30°C To +60°C | -20°C To +60°C | -30°C To +60°C |
| Stationary Min. | Installation Min. |
|---|---|
| 6.75 in (171 mm) | 13.25 in (336.6 mm) |
| Max. Pull Tension: | 300 lbs (140 kg) |
| Bulk Cable Weight: | 234 lbs/1000ft (348 kg/km) |
| Environmental Suitability: | Riser, Indoor |
| Flammability / Reaction to Fire: | UL 1666 Riser, FT4 |
| NEC / UL Compliance: | CMR |
| CEC / C(UL) Compliance: | CMR |
| Data Category: | Category 3 |
| TIA/EIA Compliance: | ANSI/TIA-568-C.2 Category 3 |
| 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), REACH: 2017-07-10 |
| APAC Compliance: | China RoHS II (GB/T 26572-2011) |
| Notes: | Electrical values are expected performance based on cable testing and representative performance within a typical Belden system. Print Includes Descending Footage/Meter Markings. Corrugated Aluminum Armor Bonded to the Jacket. |
| Update and Revision: | Revision Number: 0.390 Revision Date: 09-07-2025 |
| Item # | Color | Putup Type | Length | UPC |
|---|---|---|---|---|
| ATMM50 008CUT | Gray | Cut to Length | 612825061991 | |
| ATMM50 008CUT | Gray | Cut to Length | 1 ft | 612825061991 |