Mitsubishi Electric FR-E700EX Instruction Manual page 204

Communication operation and setting
(2) PU connector communication system configuration
 Connection of a computer to the drive unit (1:1 connection)
FR-PU07
RJ-45 connector 2)
 Combination of a computer and multiple drive units (1:n connection)
RS-485
interface/terminals
RS-232C
cable
 The drive units may be affected by reflection depending on the transmission speed or transmission distance. If this reflection
hinders communication, provide a terminating resistor. If the PU connector is used to make a connection, use a distributor since a
terminating resistor cannot be fitted. Connect the terminating resistor to only the drive unit remotest from the computer.
(Terminating resistor: 100)
REMARKS
 Refer to the following when fabricating the cable on the user side.
Examples of product available on the market (as of February 2012)
Product
1) Communication cable
2) RJ-45 connector

Do not use pins No. 2, 8 of the communication cable. (Refer to page 201)
202
Computer
Drive unit
PU
RS-485
connector
interface/terminals
Communication cable 1)
Staion 0
Computer
Drive unit
connector
Distributor
Communication cable 1)
Computer
RS-232C
Staion 1
connector
Drive unit
Maximum
15m
connector
RS-232C RS-485
converter
Distributor 3)
Communication cable 1)
SGLPEV-T (Cat5e/300m)
24AWG  4P
5-554720-3
Station 0
Drive unit
PU
connector
RJ-45
connector 2)
Communication cable 1)
Staion 1
Drive unit
PU PU
connector
3)
RJ-45connector 2)
Staion 2
Drive unit
PU PU
connector
RJ-45connector 2)
Type
Mitsubishi Cable Industries, Ltd.
Tyco Electronics Corporation
Computer
RS-232C
connector
RS-232C
Maximum
15m
cable
RS-232C RS-485
converter
Communication cable 1)
Staion n
(max. 32 drive units)
Drive unit
PU
connector
Terminating resistor∗
Staion n
Drive unit
PU
connector
Terminating resistor∗
Maker
Station 0
Drive unit
PU
connector
RJ-45
connector 2)