What Is Access Control Composite Cable?
Access control composite cable — also called a 4-in-1 cable or banana peel cable — carries every signal and power function a commercial door opening requires inside a single jacket. Instead of pulling four or five separate cables to each door, installers pull one.
Fig. 1 — 4-in-1 composite cable: four color-coded conductor groups inside a single CMP plenum jacket.
https://www.youtube.com/@systoncable3923
Source: Syston Cable Technology YouTube channel.
One-sentence answer for your customer: "This cable replaces the four or five separate cables you'd normally pull to each door — cleaner, faster, and code-compliant in plenum spaces."
The Real Jobsite Problem
Picture a 20-door commercial tenant improvement. Your crew is behind schedule. Above the drop ceiling: four cables per door snaking toward the panel room — lock power, reader data, door contact, REX — each separately labeled, each a source of confusion when the next tech shows up three years later.
That's five cable pulls per door. Five conduit fill calculations. Five separate panel entries. By door 8, someone's mislabeled a conductor. By door 15, the AHJ flags the wrong fire rating. The job is not done — it's being redone.
Fig. 2 — Traditional 5-cable-per-door wiring vs. single composite cable pull: the numbers speak for themselves.
Why Installers Are Switching
One cable replaces 4 pulls per door. Here's what that means across an entire job:
| What Changes | 5 Separate Cables | 1 Composite Cable |
|---|---|---|
| Cable pulls per door | 4–5 pulls | 1 pull |
| Conduit fill calculations | Calculate 5 fillså per door | Calculate 1 |
| Panel entries per door | 4–5 knockouts | 1 entry |
| Field labeling | Label every conductor on every cable | Factory color-coded — done |
| Fire rating risk | One wrong rating fails the door | Single CMP covers all functions |
| Service call speed | Which cable is which? Trace first. | Color code is self-documenting |
| Callback risk | Mislabeling = intermittent failures | Pre-matched conductors eliminate errors |
| Jobs per crew / month | Limited by pull time per door | More doors per day = more jobs/month |
The margin driver: Faster installs mean more doors per day. More doors per day means more projects per month — without adding headcount. The cable pays for itself on door 3.
How to Choose — The Decision System
Four questions. Answer in order. You'll know your cable before you reach the van.
A Where Does the Cable Run? — CMP vs CMR
This is the compliance question. Get it wrong and the AHJ sends you back to re-pull.
USE CMP — Plenum
- Above any drop ceiling used for HVAC airflow
- Environmental air-handling spaces
- Inside HVAC ductwork or air returns
- Where NFPA 262 is required by AHJ
- When in doubt — choose CMP
USE CMR — Riser
- Vertical floor-to-floor pathway (non-plenum)
- Floor-to-floor conduit risers
- Within walls, non-HVAC spaces
- UL 1666 vertical flame test required
- Lower material cost vs. CMP
Riser vs Plenum cable selection. Source: Syston Cable Technology YouTube channel.
B Is EMI a Factor? — Shielded vs Unshielded
Shielding protects the low-voltage reader signal from electrical noise. Most installs don't need full-jacket shielding — but in high-noise environments, intermittent reader failures cost far more than the cable upgrade.
Fig. 3 — EMI shielding comparison. Use 9898 overall shield in high-noise environments. Drain wire: ground at panel end only.
C What Protocol? — OSDP vs Wiegand
| Protocol | What It Uses | Status | Cable Needed |
|---|---|---|---|
| Wiegand | D0, D1, GND | Most installed base today | 22/3PR OAS — 9888 or 9898 |
| OSDP v2 | RS-485 (A, B, Shield) | Bidirectional, encrypted — future-ready | 22/3PR OAS — 9888 or 9898 |
Always pull OSDP-ready cable. Both 9888 and 9898 satisfy both protocols — pull the same cable today, support tomorrow's upgrade. No re-pull. No upcharge.
D What Type of Facility?
Multi-Door Efficiency
Standard EMI, clean electrical. Composite cable cuts pull time in half on tenant improvements.
Syston 9888 CMPCode Compliance on a Schedule
Plenum ceilings throughout most modern schools. CMP is non-negotiable. Budget-conscious.
Syston 9888 CMPReliability First
Imaging equipment and elevator motors generate constant EMI. Reader intermittency is a patient safety issue.
Syston 9898 CMP ShieldedSpeed + Cost Control at Scale
High door count. Speed per door is the margin driver. Any tech can service any door.
Syston 9888 CMP9888 vs 9898 — Full Specifications
Shared Features — Both Products
- RhinoPac Packaging — Tangle-free dispensing, crush-resistant, smooth pull during installation
- E-Z Footage Markings — Ascending + descending markers, no measuring tape needed on the pull
- Ripcord (Banana Peel Strip) — Runs longitudinally under jacket, fast clean strip, no conductor damage
- Color-Coded Conductors — Orange (lock), White (reader), Blue (door contact), Green (REX)
- RoHS 3 Compliant — EU 2015/863, no hazardous substances
- ISO 9001:2015 Certified — Third-party verified manufacturing quality
- CL3 Rated — 300V, can replace any CL2 application
Common Mistakes — Wrong vs Right
A practical wiring tutorial covering controller, card reader, lock, and REX device connections.
| Wrong Practice | Consequence | Right Practice |
|---|---|---|
| CMR (Riser) in Plenum Space | Fails AHJ inspection — full re-pull; NEC 725.154(A) violation | CMP — NFPA 262 low-smoke; passes inspection every time |
| 5 Separate Cable Pulls | Complex conduit fill, field labeling errors, guaranteed confusion | 1 Composite Pull — factory color-coded, fewer panel entries |
| No Shielding in High-EMI Zone | Intermittent access denials, impossible to diagnose after handoff | 9898 Overall Shield — continuous signal integrity |
| 22 AWG for Lock Power | Voltage drop kills mag-locks on long runs | 18/4 Lock Power — adequate current, safe voltage drop |
Real Application Scenarios
Multi-Door Efficiency
15-door renovation. Conduit already crowded. One composite pull fits where 5 cables wouldn't. Completed in 2 days instead of 3.
9888 — ~1 day saved/floor · Callbacks: 0Code Compliance on Schedule
Summer break: 3 weeks, 30 exterior doors, CMP ceilings throughout. E-Z footage markings eliminate measuring tape delays.
9888 — 30 doors, 30 pulls. Done on time.Reliability Over Cost
Imaging equipment generates constant EMI. A failed access event in healthcare is a safety incident. Shielded jacket eliminates noise from day one.
9898 — Signal: consistent. Incidents: 0Speed at Scale
50-location rollout. Composite cable cuts per-door pull time by more than half. Any tech from any location can service any door.
9888 — 50 stores. Same cable. Any tech.Quick Selection Guide
| Install Scenario | Recommended | Rating | Why |
|---|---|---|---|
| Plenum ceiling, standard EMI | Syston 9888 | CMP | Plenum-rated, reader pair shielded, cost-efficient |
| Plenum ceiling, high EMI | Syston 9898 | CMP Shield | Dual shield — overall + reader pair |
| Healthcare / hospital | Syston 9898 | CMP Shield | Imaging equip, elevator motors — mandatory shielding |
| Office TI, multi-door | Syston 9888 | CMP | Clean electrical, standard commercial |
| School retrofit | Syston 9888 | CMP | CMP required, budget-conscious, fast install |
| Retail rollout, high door count | Syston 9888 | CMP | Speed-optimized, standardized across locations |
| Near elevator, VFD, power equip | Syston 9898 | CMP Shield | Consistent reader performance in high-noise zones |
| OSDP v2 future-ready | 9888 or 9898 | CMP OSDP | 22/3PR OAS satisfies RS-485 OSDP requirements |
| Long run >100 ft, remote door | Syston 9898 | CMP Shield | Higher EMI exposure; calculate voltage drop on 18/4 |
Installer Quick Answers
Installer Pre-Pull Checklist
Five items. Check before every pull. Each one corresponds to a mistake that, if missed, costs rework.
60-Second Decision Tree
Fig. 4 — 60-second cable selector flowchart. Answer two questions, get one clear answer.
Leave a comment