The table below shows the assignment of the SFP transceivers to the specied groups.
Category Group Type Article number
SFP Group 1 SFP991-1 6GK5 991-1AD00-8AA0
SFP991-1 (C) 6GK5 991-1AD00-8FA0
SFP991-1LD 6GK5 991-1AF00-8AA0
SFP992-1 6GK5 992-1AL00-8AA0
SFP992-1LD 6GK5 992-1AM00-8AA0
SFP992-1LD (C) 6GK5 992-1AM00-8FA0
Group 2 SFP991-1LH+ 6GK5 991-1AE00-8AA0
SFP991-1ELH200 6GK5 991-1AE30-8AA0
SFP992-1+ 6GK5 992-1AG00-8AA0
SFP992-1LD+ 6GK5 992-1AM30-8AA0
SFP992-1LH 6GK5 992-1AN00-8AA0
SFP992-1LH+ 6GK5 992-1AP00-8AA0
SFP992-1ELH 6GK5 992-1AQ00-8AA0
SFP992-1BXMT 6GK5 992-1AL00-8TA0
SFP992-1BXMR 6GK5 992-1AL00-8RA0
SFP992-1BX10T 6GK5 992-1AM00-8TA0
SFP992-1BX10R 6GK5 992-1AM00-8RA0
SFP+ Group 1 SFP993-1 6GK5 993-1AT00-8AA0
SFP993-1LD 6GK5 993-1AU00-8AA0
Group 2 SFP993-1LH 6GK5 993-1AV00-8AA0
6.7 Signaling contact
The signaling contact is an event-driven or manually controlled failsafe alarm relay. Individual
alarms can be congured to trigger the relay when the associated event occurs. The relay can
also be xed in an open or closed state.
Manually controlling the relay may be useful to:
• Verify the failsafe relay is properly connected following the installation of the device
• Verify the open/close state is caused by the device itself or some other hardware
• Keep the relay in an open/close state while troubleshooting a network issue
Information on the signaling contact
• The signaling contact is a oating switch that signals error states by interrupting the contact.
If an error occurs, the signaling contact opens. In normal operation, the signaling contact is
closed.
• The signaling contact is connected using a 2-pin plug-in terminal block (spring-loaded
terminal). The terminal block is included in the scope of delivery of the device and can be
ordered as a spare part, see section "Spare parts (Page31)".
Connecting up
6.7Signaling contact
SCALANCE XR-300
Operating Instructions, 03/2023, C79000-G8976-C586-02 75
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