Ricoh Aficio MP2550B Service Manual page 1112

Controller Board Slots
Board Slots
No. Name
ISDN
Line 3
Line 1
TEL1
Line 2
Board Slot
SD Card Slot 1
SD Card Slot 2
USB-B
Ethernet
Green LED
Orange LED
Only two SD Card slots are available for applications.
To install more applications, they must be moved onto one SD Card. (See 1.2.4 Printer,
Scanner Enhance Options for specific instructions)
D383
Jack for ISDN connection (Japan Only)
Not used. (G4 is not available for installation outside
Japan at this time.)
Jack for the main telephone line from the outside for
connection to Fax Option (D361).
Jack for telephone connection
Jack for a 2nd line connection to the Fax Interface Unit
(D361) (G3) when this option is installed.
Optional interface boards are installed here.
For options provided on SD cards. The application SD
card (with the exception of the HDD Encryption unit or VM
SD card) should be installed in Slot 1. If more than one
application is to be used, move the applications to the
same SD card with SP5873.
For options provided on SD cards and servicing. The
HDD Encryption unit SD card and VM card must be
installed in Slot 2.
Built-in for connection of USB devices (USB 2.0)
Standard LAN connection point. 100BaseT LAN
Lights when the network is connected and operating.
Indicates the current transmission speed:
ON: 100Base
OFF: 10Base
2
Description
SM