Technical Data · Publication 1585-TD001 · Rockwell Automation
Allen-Bradley Ethernet Media — Technical Data (Bulletin 1585)
Technical data for the Allen-Bradley Bulletin 1585 industrial Ethernet media portfolio. Covers Cat 5e and Cat 6 cable spools (UTP, foil-shielded, braid- shielded, and 600V-rated), RJ45 cordsets and patchcords, 4-pin M12 D-code cordsets and patchcords, 8-pin M12 X-code Gigabit cordsets, M12 receptacle flex-rated assemblies, field-attachable RJ45 IDC and crimp connectors, M12 insulation displacement connectors (IDC), and M12-to-RJ45 bulkhead adapters for IP20-to-IP67 network transitions.
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Specifications
Electrical — Data Rate & Standards
| Data rate (Cat 5e cables and cordsets) | Up to 1 Gb/s; supports 10/100BASE-T and 1000BASE-T over 4 pairs |
|---|---|
| Data rate (Cat 6 — 1585J-M8TG, 1585D-M8UG X-code) | Up to 1 Gb/s Gigabit Ethernet (1000BASE-T), 4 twisted pairs |
| Standards compliance (cable spools) | ODVA EtherNet/IP; ISO IEC 24702 (industrial automation cabling) |
| Standards compliance (M12 D-code flex-rated) | ODVA EtherNet/IP; ISO IEC 24702; IEC 61918 (industrial Ethernet installation) |
| Standards compliance (M12 X-code Gigabit) | ISO IEC 11801; IEC 61918; TIA 568-B |
| Cable ratings (Cat 5e UTP teal TPE) | UL CM, CMX; cUL CM; TIA 568-B, flex-rated (e.g., 1585-C8TB) |
| Cable ratings (600V PVC foil shield) | (UL) CMX, CMR; c(UL) CMG; (UL) PLTC or AWM 2570 80 °C 600V; TIA 568-B |
| Plenum cable rating | UL CMP; cUL CMG; TIA 568-B (1585-C8MB PVC plenum) |
| Wiring scheme | TIA T568B color code — pair 1 orange, pair 2 green, pair 3 blue, pair 4 brown |
| Suitable noise environment | M3 I3 C3 E3 (mechanical 3 / ingress 3 / chemical 3 / electromagnetic 3) |
Physical — Conductor & Jacket
| Conductor gauge (unshielded Cat 5e TPE cables) | 24 AWG tinned copper stranded, 4- or 8-conductor |
|---|---|
| Conductor gauge (shielded PUR Cat 5e) | 26 AWG tinned copper stranded, 4- or 8-conductor |
| Conductor gauge (600V PVC foil shield) | 22 AWG tinned copper stranded, 4- or 8-conductor |
| Nominal outer diameter (4-cond TPE) | 5.6 mm (0.22 in.) |
| Nominal outer diameter (8-cond TPE / PUR) | 5.84 mm (0.23 in.) ±10% |
| Nominal outer diameter (600V PVC) | 8.13 ±0.38 mm (0.32 ±0.015 in.) |
| Cable jacket materials | TPE (robotic flex), PUR (robotic halogen-free), Riser PVC (general purpose), Plenum PVC (air ducts), 600V PVC (high-voltage cable trays) |
| Bend radius (TPE / PUR flex-rated) | 10 million flex cycles at 20× cable diameter (spool spec); 10× cable diameter bend radius for assembled cordsets |
| Cable jacket colors | Teal (standard industrial), Red (safety / fault-zone differentiation) |
| Voltage rating (standard cables) | 300V |
| Voltage rating (600V PVC foil shield) | 600V (for cable trays shared with power conductors) |
| Shielding types | Unshielded UTP, foil shield only, foil + braided shield (highest immunity) |
Environmental — Temperature & Ratings
| Operating temperature (TPE / PUR cables) | -40…+75 °C (-40…+167 °F) |
|---|---|
| Operating temperature (600V PVC cables) | -20…+80 °C (-4…+176 °F) |
| Operating temperature (RJ45 cordsets & patchcords) | -20…+60 °C (-4…+140 °F) |
| Operating temperature (M12 X-code Gigabit) | -40…+80 °C (-40…+176 °F) |
| Operating temperature (M12 IDC field-attachable) | -25…+85 °C (-13…+185 °F); install at -5…+50 °C |
| Operating temperature (M12-to-RJ45 bulkhead) | -20…+85 °C (-4…+185 °F) |
| IP rating (RJ45 assemblies and field connectors) | IP20 (dry, protected indoor panels) |
| IP rating (M12 D-code, X-code, bulkhead) | IP67 (dust-tight, temporary immersion); bulkhead 1200 psi / 8270 kPa washdown |
| Resistance features (TPE / PUR jackets) | Weld-splatter resistant, sunlight / UV resistant, oil resistant; PUR is halogen-free |
| Flex endurance | TPE channel transmission performance maintained through 10 million flex cycles |
Connector — RJ45 and M12 Options
| RJ45 connector (molded cordsets) | 8-pin male, gold-plated brass contacts, thin stranded copper conductor, rugged strain relief and hitch mechanism |
|---|---|
| RJ45 field-attachable IDC (1585J-M8CC-H) | Insulation-displacement, no-tools termination; 27…24 AWG solid or 27…22 AWG stranded; 360° shielding; reusable up to 5 times; Cat 6 |
| RJ45 field-attachable crimp (1585J-M8CC-C) | 26…24 AWG crimp with rugged boot; 150V, 1.5A; clear polycarbonate; Cat 5e |
| M12 D-code cordset (4-pin, 100 Mb/s) | Male M12 D-code straight or right-angle; nickel-plated brass coupling nut; polyurethane (PUR) or TPE housing; gold-plated brass contacts; IP67 |
| M12 X-code cordset (8-pin, 1 Gb/s Gigabit) | 8-pin M12 X-code straight male, PUR or TPE over-mold, gold-plated brass contacts; IP67; 10× cable diameter bend radius |
| M12 field-attachable IDC (1585D-M4DC-H / M4DC-SH / F4DC-SH) | 4-pin, no tools required, straight male or female, zinc die-cast shielded or polyamide unshielded; 10× re-installations; 32V 4A; IP67 |
| M12 receptacle flex-rated (1585D-D4TBJM / D4UBJM) | Female M12 D-code receptacle, front-mount; terminated to RJ45 patchcord end; 300V; flex-rated, 24 AWG; TIA 568B |
| M12-to-RJ45 bulkhead (1585A-DD4JD) | Female M12 receptacle to female RJ45 right-angle adapter; polyamide + nickel-plated brass; PG 9 panel threads; 32V 4A; IP67 1200 psi washdown |
| RJ45 pinout (TIA T568B) | Pin 1 White/Orange TxData+, Pin 2 Orange TxData−, Pin 3 White/Green RxData+, Pin 6 Green RxData− (pairs 4/5 and 7/8 unused on 100 Mb/s, used for 1000BASE-T) |
| M12 D-code 4-pin pinout | Pin 1 White/Orange (Tx+), Pin 2 White/Green (Rx+), Pin 3 Orange (Tx−), Pin 4 Green (Rx−) |
Catalog Number Format
How to read an Allen-Bradley 1585 catalog number. Each position encodes a specific configuration attribute.
Position
Meaning
Example
1585
Bulletin prefix for industrial Ethernet media
1585-C8TB → Bulletin 1585
Series letter after dash: -C / J / D / A
Product family: C = bulk cable spool, J = RJ45 cordset/patchcord, D = M12 D-code or X-code cordset, A = M12-to-RJ45 bulkhead adapter
1585-C4TB (spool); 1585J-M8HBJM (RJ45 patchcord); 1585D-M4UBDM (M12 D-code patchcord); 1585A-DD4JD (bulkhead)
Conductor count digit (4 / 8)
Number of conductors / pairs. 4 = 2 twisted pairs (100 Mb/s Fast Ethernet). 8 = 4 twisted pairs (Gigabit 1000BASE-T)
C4TB = 4 conductors (2 pairs); C8TB = 8 conductors (4 pairs)
Jacket / shield code (T / U / H / V / F / E / M / P)
T = teal TPE robotic (unshielded), U = teal PUR foil+braid shielded halogen-free, H = teal 600V PVC foil shield, V = red TPE unshielded, F = red PUR foil+braid, E = red 600V PVC, M = PVC plenum, P = PVC riser
C8UB = teal PUR shielded; C8HB = teal 600V PVC foil; C4EB = red 600V PVC
Series suffix 'B' (bulk spools) / 'JM' / 'DM' / 'JE' / 'BJM' (assemblies)
Assembly style. B = cable spool. JM = RJ45 male-to-male patchcord. DM = M12-to-M12 patchcord. JE = cordset with flying leads. BJM on 1585D = M12-to-RJ45 patchcord. BDM on 1585D = M12-to-M12 patchcord
1585D-M4TBDM = M12-to-M12 TPE patchcord; 1585D-M4TBJM = M12-to-RJ45 TPE patchcord
Length suffix after dash: -Sx (spools) or -x (assemblies)
Cable length. Spools: replace x with 100 (100 m / 328 ft), 300 (300 m / 984 ft), or 600 (600 m / 1969 ft). Assemblies (RJ45/M12): replace x with 1 (1 m), 2 (2 m), 5 (5 m), 10 (10 m); M12 receptacle adds 15 (15 m)
1585-C8TB-S600 = 600 m reel of teal TPE; 1585J-M8TBJM-5 = 5 m RJ45 patchcord; 1585D-M4TBJM-10 = 10 m M12-to-RJ45
Connector orientation digits inside RJ45 patchcord part number (M / E / L / P)
End angles. M = straight-to-straight, E = right-angle, L = left-angle, P = (paired with second letter) — the 3rd and 6th characters encode first and second end orientations
1585J-M8TBJM = straight-to-straight; 1585J-E8TBJM = right-angle to straight; 1585J-L8TBJL = left-angle to left-angle
Communication Protocols
Supported industrial networks and field buses for the products covered by this publication.
EtherNet/IP Primary use — all 1585 cables and connectors are designed to ODVA EtherNet/IP media specifications using CIP over standard Ethernet and TCP/IP
Device-Level Ring (DLR) Supported by every 1585 cable. DLR is an ODVA ring topology running on standard EtherNet/IP media; no special cable variant required — use teal TPE or PUR shielded for the ring
10BASE-T / 100BASE-TX (Fast Ethernet) All 4-conductor (2-pair) and 8-conductor cables support 10/100 Mb/s; the 4-pin M12 D-code uses pairs 1+3 only
1000BASE-T (Gigabit Ethernet) Requires 4 twisted pairs — use 8-conductor Cat 5e (1585-C8xx, 1585J-M8xxx) or Cat 6 (1585J-M8TGJM) cables, or the 8-pin M12 X-code (1585D-M8UGDM)
Modbus TCP Standard Ethernet protocol — any 1585 Cat 5e or Cat 6 cable or connector will carry Modbus TCP traffic unchanged
PROFINET 1585 media supports PROFINET because PROFINET is layered on standard 100BASE-TX / 1000BASE-T Ethernet; use shielded variants (1585-C8UB or PUR cordsets) to meet PROFINET shielding guidance
HTTP / FTP / SNMP / BOOTP / DHCP Standard TCP/IP services run unchanged — management, diagnostics, and firmware transfer to Stratix switches and 1734/1756/5069 controllers
Certifications & Compliance
UL Listed and cUL Listed (Canadian Electrical Code) — all cable spools
UL Recognized for Canada and USA — M12-to-RJ45 bulkhead (1585A)
UL CM, CMX, CMR, CMG, PLTC ratings per variant (riser, plenum, tray, power-limited tray)
AWM 2570 80 °C 600V for 600V PVC foil-shield cable
c(ETL)US TYPE CMX — halogen-free PUR shielded cables
TIA-568-B channel transmission performance
ISO IEC 24702 (industrial automation cabling)
IEC 61918 (industrial Ethernet installation)
ISO IEC 11801 (generic cabling — X-code Gigabit)
ODVA EtherNet/IP media specification
IP67 enclosure rating on M12 D-code, X-code, and bulkhead assemblies (IEC 60529)
M3 I3 C3 E3 environmental classification per IEC 61918
Halogen-free (PUR jacket variants) — low-smoke zero-halogen applications
Document Contents
Full PDF covers the following topics in detail:
- Cable Spools — unshielded twisted-pair Cat 5e (1585-C4TB, C8TB, C8VB robotic TPE; C8MB plenum; C8PB riser) with product-selection table and color-code diagrams for 2-pair and 4-pair cables
- Shielded Twisted-pair (Foil and Braided Shield) — Cat 5e riser PVC (1585-C8CB), robotic halogen-free PUR (1585-C4UB, C8UB), and 600V PVC foil shield (1585-C8HB, C4HB) with full electrical / physical / environmental spec tables
- 600V Ethernet Cable — PVC foil-shield spool, RJ45 cordsets (1585J-M8HB, M4HB) and patchcords (1585J-M8HBJM, E8HBJM, L8HBJM, M4HBJM) with right- and left-angle variants and RJ45 IDC field-attachable connector
- RJ45 Cordsets and Patchcords — Cat 5e 4- and 8-conductor assemblies; teal TPE high-flex, teal riser PVC, teal 600V PVC foil shield, red jacket variants; all six straight/right-angle/left-angle end-combination part numbers tabulated
- RJ45 Gigabit Cordset, Cat 6 — 8-conductor 24 AWG foil + braid shielded TPE (1585J-M8TG, E8TG); wiring diagram with 1000BASE-T bidirectional pair assignments
- RJ45 Red Cordset — 600V PVC red-jacketed variant for safety / fault-zone differentiation; full product selection table for cordsets, patchcords, and length variants
- M12 Flex-rated — 4-pin M12 D-code single-ended cordsets (flying leads) in TPE unshielded, PUR foil+braid halogen-free, and 600V PVC foil shield; M12-to-M12 and M12-to-RJ45 patchcord selection tables
- M12 Receptacle Flex-rated — female M12 D-code panel receptacle terminated to RJ45 patchcord (1585D-D4TBJM, D4UBJM) for front-mount panel transitions
- M12 X-code Flex-rated Gigabit — 8-pin X-code cordsets (1585D-M8UGDM, M8UGJM, M8TGD4M) with wiring diagram for Cat 6 / 1000BASE-T industrial Ethernet
- M12 Red — 4-pin M12 D-code red-jacketed cordsets (1585D-M4VBDM, M4FBDM, M4EBDM) for fault-zone or safety-network differentiation
- RJ45 Field Attachable Connector — IDC (1585J-M8CC-H, Cat 6) and crimp (1585J-M8CC-C, Cat 5e); connector-material, enclosure-rating, and AWG compatibility tables
- M12 Insulation Displacement Connectors (IDC) — field-attachable straight male / female; polyamide unshielded (26…22 AWG) or zinc die-cast shielded (24…22 AWG); 10× re-installations, IP67, 32V 4A
- M12 to RJ45 Bulkhead Connector (1585A-DD4JD) — female M12 to female RJ45 right-angle adapter for IP20-to-IP67 panel transitions in On-Machine and Armor I/O installations
Frequently Asked Questions
Cat 5e or Cat 6 for industrial EtherNet/IP?
Cat 5e (1585-C8TB, 1585J-M8TBJM, 1585D-M4TBJM) is Allen-Bradley's standard industrial Ethernet cable and carries Gigabit (1000BASE-T) across all 4 twisted pairs just like Cat 6. Use Cat 6 (1585J-M8TGJM RJ45 or 1585D-M8UGDM M12 X-code) when you need extra headroom against near-end crosstalk — typically in high-density cabinet installations or when you expect to run 10GBASE-T in the future. For EtherNet/IP DLR, plain Cat 5e is what Rockwell specifies; the ring protocol runs unchanged on either grade.
Does EtherNet/IP Device-Level Ring need a special cable?
No — DLR runs on standard ODVA EtherNet/IP media, which means any 1585 Cat 5e or Cat 6 cable with the appropriate environmental rating for the installation. The ring is formed by two Ethernet ports on each DLR-capable device (for example, 1734-AENTR, 5069-AENTR, or a Stratix DLR-supervisor switch), not by a special cable. For moving machinery use flex-rated teal TPE (1585-C8TB); for fixed cable trays shared with power conductors use 600V foil-shield PVC (1585-C8HB); for halogen-free installations use PUR (1585-C8UB).
When should I use shielded vs unshielded Ethernet cable?
Allen-Bradley rates all 1585 cables to the M3 I3 C3 E3 environment, but the E3 electromagnetic-severity class is where shielding matters. Use unshielded teal TPE (1585-C8TB) inside the control cabinet and in relatively quiet machine zones. Use foil + braid shielded PUR (1585-C8UB) when the cable runs near VFDs, welders, or high-current contactors, or when PROFINET is involved and the specification calls for shielded runs. Use 600V PVC foil shield (1585-C8HB) whenever the Ethernet cable shares a cable tray with high-voltage power conductors — the 600V rating is a code requirement, not just a shielding grade.
M12 D-code or RJ45 — when does On-Machine connectivity justify the jump?
RJ45 is IP20 and meant for the inside of a control cabinet. M12 D-code is IP67 and designed for wet, dusty, or high-vibration applications out on the machine — wash-down food and beverage, outdoor equipment, conveyor lines, and anywhere oils, chemicals, or mechanical abuse can reach. The 1585D cordsets use a polyurethane over-molded housing rated for weld splatter, sunlight, and oils, and the M12 coupling nut is nickel-plated brass so it survives repeated mate / unmate cycles. Use the 1585A-DD4JD bulkhead adapter to transition from IP67 M12 cabling outside a junction box to a standard RJ45 patchcord inside it.
What's the maximum length of an EtherNet/IP channel with 1585 cable?
TIA-568-B limits a copper Ethernet channel to 100 m (328 ft) end-to-end — that's typically 90 m of horizontal cable plus two patchcords of up to 5 m each. 1585 cable spools are offered in 100 m (328 ft), 300 m (984 ft), and 600 m (1969 ft) reels so one reel covers multiple drops. For longer runs, insert a Stratix managed switch or use a fiber backbone — copper Ethernet is a physical-layer spec, not something cable grade can extend beyond 100 m.
Can I terminate 1585 cable in the field, or do I need factory-molded cordsets?
Both options are supported. For fast field termination use the 1585J-M8CC-H RJ45 IDC connector (Cat 6, no tools, reusable up to 5 times) or the 1585J- M8CC-C crimp connector with boot (Cat 5e). For IP67 field termination of M12 D-code use the 1585D-M4DC-H polyamide IDC or 1585D-M4DC-SH / F4DC-SH zinc die-cast shielded IDC — also no tools, rated 10× re-installations. Factory-molded cordsets (1585J-M8HBJM, 1585D-M4TBJM, etc.) give tighter electrical tolerances and a better strain-relief for moving-machine flex applications; field-attachable connectors are the right call for custom lengths and repair work.
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