Sagem 4450E - Manual (Page 84)

SAGEM 3P@C
3P@C Installation Manual
Page 4-23 Reproduction and communication in any form prohibited without the written permission of SAGEM SA
4.3.4. 4.3.4. 4.3.4. 4.3.4. Equipment Power Supply Test
To ensure correct power supply for the equipment, it is necessary to try powering on the equipment with zero
load and check if the fans work normally. If the fans work normally, cut the -48 V power, and proceed with the
installation steps. When all the SMUBs and service boards are installed, power on the equipment again.
Otherwise, repeatedly check whether the fan power and the -48 V DC power are correctly connected.
4.4. 4.4. 4.4. 4.4. Installing the Service Processor Unit Board (SMUB)
The SMUB is used to implement the higher layer protocol processing and equipment management functions. It
needs to communicate with the uplink data through the interface module. Since it does not contain any interface
module or routing module, you may select these modules as required and install them on the SMUB.
Note
Before any operation, you must release the static electricity
on your body. It is suggested to wear the antistatic wrist
strap.
4.4.1. 4.4.1. 4.4.1. 4.4.1. Installing the Uplink Interface Modules
Each SMUB can be installed with 2 uplink interface modules. To implement the interworking between the 3P@C
4450E and the other networks, at least one uplink interface module should be installed. There are 4 screw holes
on the SMUB corresponding to the installation position of an uplink interface module. They are used to fix the
module, as shown in the following figure:
Figure 4-30 Panel view of the SUMB
Fix the nuts with
screws from the
rear of the SMUB
Note: (1) (2) (3) are the screw holes to fix the uplink interface
module, of which (3) and (4) need two additional nuts.
(5) is the connection socket to fix the uplink interface module.