External device
Sheathed cable
ALR111
2 SD
3 RD
4 RS
5 CS
6 DR
20 ER
1 FG
7 SG
8 CD
SD 3
RD 2
RS 7
CS 8
DR 6
ER 4
SG 5
CD 1
Protective grounding system
Figure 5.5.1-3 Cable Connection when Directly Connecting the ALR111 and the External Device
(RS-232C D-Sub 25-Pin)
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Connecting to the External Device with RS-232C D-Sub 9-Pin Connector
(Direct Connection)
The following figure shows the cable between the ALR111 and a external device with
RS-232C D-Sub 9-Pin connector. This connection requires two 9-pin connectors at both ends
of the cable.
The length of the cable for connecting ALR111 and the external device should be less than 15
meters.
External device
Protective grounding system
Sheathed cable
ALR111
3 SD
2 RD
7 RS
8 CS
6 DR
4 ER
Connector shell
5 SG
1 CD
SD 3
RD 2
RS 7
CS 8
DR 6
ER 4
SG 5
CD 1
Figure 5.5.1-4 Cable Connection when Directly Connecting the ALR111 and the External Device
(RS-232C D-Sub 9-Pin)
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Cables for Communication Modules
Yokogawa Electric Corporation provides RS-232C cables shown in the following table. Any
necessary cables other than these should be prepared by the user.
Table 5.5.1-2 List of Communication Cables
Model
Cable Name
Remarks
AKB131
RS-232C Modem cable
Between ALR111 to modem (for RS circuit insulation)
(9-25pin)
AKB132
RS-232C Null modem cable
Between ALR111 to RS-232C equipment (for RS circuit insu-
lation) (9-25pin)
Continues on the next page
<5.5 Connection of Communication Modules >
5-37
IM 32Q06C10-31E
4th Edition : Jan.30,2015-00
