Mci Board Extension External Variation (Sw 02.01 And Higher) - Siemens SINUMERIK 840Di Manual

2 Hardware Descriptions

2.5 MCI board extension external variation (SW 02.01 and higher)

2.5 MCI board extension external variation (SW 02.01 and
higher)
2.5.1 Module
X121: Cable distributor
Fig. 2-13 Module with a modified housing cover
Order number:
2-70
The MCI board extension external variation, like the slot variation, is an electri-
cally compatible successor version of the MCI board extension described in
Section 2.3, page 2-56. The module has been extended by the option of operat-
ing differential handwheels or TTL handwheels.
To free the PCI slot of the PCU, in this MCI board extension variation mechani-
cal fixture is implemented in a modified housing cover of the PCU.
X4: MCI board extension
Designation
MCI board extension external variation (option)
Caution
Never plug or remove the cable distributor at the X121 interface of the mod-
ule under voltage.
Before you plug or remove the cable connector, switch off the PCU (shut down
Windows NT correctly!). Otherwise, short circuits might occur on the module, as
a result of which the module could be destroyed.
Switch S1
Order No. (MLFB)
6FC5 222-0AA01-0AA0
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03