11.1  Feedback Option Modules
11.1.1  Fully-Closed Modules
11-8
 RU77-4096ADF/RU77-4096AFFT01 Absolute Rotary Encoders 
* Use a CE28-Series Extension Cable for RU77 Encoder from Magnescale Co., Ltd.
Note: The RU77 is a single-turn Absolute Rotary Encoder. 
 Connections to Linear Encoders from Mitutoyo Corporation
 ST78A/ST13 Linear Encoders
* Refer to the following section for details on Serial Converter Unit Cables.
9.3.3 Serial Converter Unit Cables on page 9-20
CN31CN2
• 
RU77-4096ADF
• 
RU77-4096AFFT01
Range of products from Magnescale Co., Ltd.
Rotary Encoder from 
Magnescale Co., Ltd.
Encoder Cable from 
Magnescale Co., Ltd.*
Connection to encoder in Rotary Servomotor
Encoder Cable
Fully-Closed 
Module
SERVO-
PACK
• 
ST784A
• 
ST788A
• 
ST789A
• 
ST781A
• 
ST782A
• 
ST783A
CN31CN2
Linear Encoders from 
Mitutoyo Corporation
Serial Converter Unit* 
Cable
Connection to encoder in Rotary Servomotor
Encoder Cable
Cable from Mitutoyo Corporation
Fully-Closed 
Module
SERVO-
PACK
• 
ST1381
• 
ST1382