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DetailsThe EPOCH RS5 series is a simple mounting incremental encoder designed for stepper motors and DC motors. With a special encoder disk, the typical model RS5500-B outputs 1000 pulses of A and B signals. It accommodates multiple shaft diameters, housing shapes, and output types for flexible integration in numerical control machine tools, automation equipment, and general motion control applications.
Standard Type — Housing Code 5 (RS91 Direct Connection Plug-in)

Exterior dimension drawing — Standard type housing for RS5 series encoder (unit: mm)
Tail Square Hole Type — Housing Code 6

Exterior dimension drawing — Tail square hole type housing (unit: mm)
RS97 Housing — Housing Code 7

Exterior dimension drawing — RS97 housing type (unit: mm)
RS90 Housing — Housing Code 8

Exterior dimension drawing — RS90 housing type (unit: mm)
| Parameter | Specification |
|---|---|
| Technology | Optical incremental encoder with simple mounting design |
| Output Signals | 2-ch voltage (A,B) / 3-ch voltage (A,B,Z) / 2-ch differential (A,A/,B,B/) / 3-ch differential (A,A/,B,B/,Z,Z/) |
| Resolution Range | 100 ~ 2,500 CPR (11 codes: C, E, F, G, H, A, P, B, J, T, W; other CPR customizable) |
| Supply Voltage | 5V DC (typical) |
| Housing Types | Standard (RS91 plug-in) / Tail Square Hole / RS97 Housing / RS90 Housing |
| Disk Type | Mylar Disk / Metal Disk (selectable) |
| Shaft Diameter Options | 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 1/8in, 5/32in, 3/16in, 1/4in (10 options) |
| Applications | Stepper motors, DC motors, CNC machine tools, automation equipment |
The RS5 series ordering code follows the format: RS5 [Housing] [Signal] [Disk] - [CPR]
Shaft diameter is specified separately. The example RS5500-B represents: Standard housing (5), 2-ch voltage output (0), Mylar disk (0), 1000 CPR (B).
| Code | Description |
|---|---|
| 5 | Standard type (RS91 direct connection plug-in) |
| 6 | Tail square hole type |
| 7 | RS97 housing |
| 8 | RS90 housing |
| Code | Description |
|---|---|
| 0/2 | 2 channels voltage (A, B) |
| 4 | 3 channels voltage (A, B, Z) |
| 3 | 2 channels differential (A, A/, B, B/) |
| 5 | 3 channels differential (A, A/, B, B/, Z, Z/) |
| Code | Description |
|---|---|
| S | Mylar disk |
| P | Mylar disk |
| M | Metal disk |
| CPR Code | C | E | F | G | H | A | P | B | J | T | W |
|---|---|---|---|---|---|---|---|---|---|---|---|
| CPR | 100 | 200 | 256 | 360 | 400 | 500 | 600 | 1,000 | 1,024 | 2,000 | 2,500 |
* Other CPR values can be customized — contact our sales team.
| Shaft Code | 01 | 02 | 03 | 04 | 05 | 06 | 11 | 12 | 13 | 14 |
|---|---|---|---|---|---|---|---|---|---|---|
| Diameter | φ2 mm | φ3 mm | φ1/8 in | φ5/32 in | φ3/16 in | φ1/4 in | φ4 mm | φ6 mm | φ8 mm | φ5 mm |
Example Ordering Code:
RS5500-B
= RS5 Series · Standard housing (5) · 2-ch voltage (0) · Mylar disk (0) · B=1000 CPR. Specify shaft code separately.
For applications requiring a reflective encoder design with PCBA+integrated housing (no separate disk mounting), consider the RF28 Series Reflective Optical Encoder Module or the RT28 Series Reflective Optical Encoder Module for 28mm form-factor options with differential signal outputs.
The RS5 simple installation encoder offers 4 housing types (Standard, Tail Square Hole, RS97, RS90) and 10 shaft diameter options from 2mm to 1/4in, providing more mechanical flexibility than fixed-form-factor transmissive modules like the HEDS-5500. With 100~2,500 CPR resolution and selectable output types (2/3-ch voltage or differential), the RS5 accommodates diverse stepper motor and DC motor mounting requirements without custom tooling.
The Mylar disk (code S) is a flexible, lightweight polyester film disk suitable for standard resolution applications up to 1,000 CPR, offering cost-effective performance for general automation. The Metal disk (code M) provides greater dimensional stability and is recommended for higher CPR ratings (above 1,000 CPR) and applications with wider temperature variation, ensuring consistent optical grating alignment over the encoder's service life.
For CNC machine tool applications, the Standard housing (code 5, RS91 direct connection plug-in) and RS90 housing (code 8) are the most commonly selected types due to their robust mounting interfaces. For applications requiring differential signal output for noise immunity in electrically noisy CNC environments, choose signal output code 3 (2-ch differential A, A/, B, B/) or code 5 (3-ch differential with Z, Z/). The RS5 supports up to 2,500 CPR for high-precision position feedback in machining operations.
Yes, the RS5 series can serve as a compatible alternative for HEDS-5500 and HEDS-5600 series encoders in many stepper and DC motor applications, offering the same A/B quadrature output signals with selectable voltage or differential formats. However, the RS5 uses a simple mounting design with a separate encoder disk rather than an integrated module, so mechanical interface verification is recommended. Contact EPOCH with your motor shaft diameter and mounting pattern for a compatibility assessment.
Need custom CPR resolution, specific housing type, or bulk pricing for the RS5 simple installation encoder? Contact our sales team.

| Item | Description | QTY/Box | Boxes /Carton | G.W | N.W | QTY /Carton | Package Size |
| RS5 | RS5 Series Simple Installation Encoders | 10pcs | 10boxes | /kgs | /kgs | 100pcs | 310*130*45mm |
Discover all the technical specifications by downloading the datasheet today.
| Part Number | Interface |
Dimensions
(mm) |
Resolution Ranges | Resolution Counter |
Communication Frequency |
Working Temperature |
Communication Frequency |
Operation Speeds |
Protection Structure |
Footprint 3D | Datasheet | Sample |
| RZ35A08 | RS485 | Φ35mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | ![]() |
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| RZ Series | RS485 | Φ48mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | ![]() |
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| UZ4409 | RS485 | Φ44mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | ![]() |
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| UZ Series | RS485 | Φ48mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | ![]() |
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| RS972 | / | / | / | / | / | -40°C to +85°C | / | / | / | ![]() |
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| RS970 | / | / | / | / | / | -40°C to +85°C | / | / | / | ![]() |
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| G5810-02 | / | / | / | / | / | / | / | / | / | ![]() |
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| G3806-03 | / | / | / | / | / | / | / | / | / | ![]() |
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| G2803 | / | / | / | / | / | / | / | / | / | ![]() |
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| G2504 | / | / | / | / | / | / | / | / | / | ![]() |
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| G5806 | / | / | / | / | / | / | / | / | / | ![]() |
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| RK Series | / | / | / | / | / | -20°C to +85°C | / | / | / | ![]() |
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| RS9140 Series | / | / | / | / | / | / | / | / | / | ![]() |
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| RS9100 Series | / | / | / | / | / | -40°C to +85°C | / | / | / | ![]() |
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| RS971 | / | / | / | / | / | -40°C to +85°C | / | / | / | ![]() |
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| RK Series | / | / | / | / | / | -20°C to +85°C | / | / | / | ![]() |
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| RF28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | ![]() |
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| RT28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | ![]() |
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| RF20 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | ![]() |
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| RR28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | ![]() |
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| RS5 | / | / | / | Single/Multi-Turn | / | / | / | / | / | ![]() |
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| RSG35 | RS485 | / | 17-23 Bits | Single/Multi-Turn | ≤16K | -20 ℃ ~+105 ℃ | 16K | 6000rpm | IP40 | ![]() |
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| RSU3506 | RS485 | / | 17-24 Bits | Single/Multi-Turn | ≤16K | -20 ℃ ~+105 ℃ | 16K | 6000rpm | IP40 | ![]() |
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| MS Series | / | / | 17 Bits | Single/Multi-Turn | ≤16K | -10℃~105℃ | 16K | ≤6000rpm | / | ![]() |
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| RZ1337A | RS485 | / | 25 Bits | Single/Multi-Turn | ≤16K | -20°C-+105°C | 16K | 12000rpm | IP40 | ![]() |
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| RZ7810 | / | / | / | / | / | / | / | / | / | ![]() |
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| RS Series | RS485 | / | 17~23 Bits | Single/Multi-Turn | ≤16K | -20°C-+105°C | 16K | 6000rpm | IP40 | ![]() |
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