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RS-232C Units Section 6-2
RS-232C Connector
Pin Arrangement (Same for Ports 1 and 2)
Note The CS signal is always checked. Data will not be output if CS is not con-
nected. Short-circuit the RS-CS signals when they are not used.
A connection example using applicable connectors and recommended cables
is provided below. Refer to the following explanation when creating cables.
Applicable Connectors
Plug: XM2D-0901 (OMRON, 9-pin female) or equivalent.
Hood: XM2S-0913 (OMRON, 9-pin inch-pitch screws) or equivalent.
Recommended Cables
UL2464 AWG28 × 5P IFS-RVV-SB (UL product, Fujikura)
AWG28
× 5P IFVV-SB (Non-UL products, Fujikura)
UL2464-SB 5P
× AWG28 (UL product, Hitachi)
CO-MA-VV-SB 5P
× AWG28 (Non-UL product, Hitachi)
Connection Example
The following diagram gives an connection example. Connection methods
however, may differ depending on the connected devices, so refer to the con-
nected device’s instruction manual for further information.
Pin No. Symbol Signal name Signal direction
RS-232C Unit ↔ External
devices
1 --- Not used ---
2 RD Receive data ←
3 SD Send data →
4 --- Not used ---
5 SG Signal ground ---
6 --- Not used ---
7 RS Request send (See note.) →
8 CS Can send (See note.) ←
9 --- Not used ---
Connecting an OMRON V500-R32@ Bar Code Reader
RS-232C Unit end Bar Code Reader end
RS-232C
interface
Abbreviation Pin No.
Pin No.
RS-232C
interface
Shield
(9-pin)
(9-pin, male)
---
---
---
Hood
metal
---
---
---
---
Abbreviation
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