Mm991-2P (Sc Rj) - Siemens SCALANCE MM900 Series Compact Operating Instructions

4.2.7

MM991-2P (SC RJ)

Possible attachments
The MM991-2P (SC RJ) media module has the following:
● 2 x 100 Mbps SC RJ ports optical for Plastic Optical Fiber (POF) up to max. 50 m or Polymer
Cladded Fiber (PCF) up to max. 100 m
Figure 4-7
[Device labeling in square brackets]
Note
Installation of the XR-300M, XR-300M PoE and XR-300M EEC
Only the lower slots may be equipped with the MM991-2P.
● XR-300M: Maximum 6 modules in slots 7 to 12
● XR-300M PoE, XR-300M EEC: Maximum 2 modules in slots 3 and 4
The slot above an MM991-2P may only be used as follows:
● Without media module
● With media module MM992-2CUC or MM992-2CU
Example XR-300M: If the MM991-2P is plugged into slot 8, an MM992-2CUC may be used in
slot 2.
See also table: "Operating temperature with media module MM991-2P (Page 43)"
SCALANCE MM900
Compact Operating Instructions, 11/2019, A5E02630805-16
MM991-2P (SC RJ) [9912AH]
Device description
4.2 Product properties and device views
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