User's Manual Part 3

INITIAL LINE UP ROI-S05750

3-5

Chart 3-1 (Cont’d)

Step Procedure

Note: 1 The ODU power is supplied from the IDU

DC Power Connection-2 (DC-DC CONV)

1+0 SYSTEM

1 Check that the IF cable between the MODEM and the ODU is

connected,

2 Connect the power cable to –43 V/OUT of the DC DC CONV

and SELV of the MODEM as shown in Fig 3-1 (2/2),

3 Before connecting the power cable connector to the SELV

of the DC-DC CONV, check that the rated input voltage

is −24V/−48V (allowable range; within

–20 to –60 V) or

+24V/+48V (allowable range; within

+20 to +60 V) with

the digital multimeter, (see Fig. 3-1),

4 Pull out the PWR switch lever of the DC-DC CONV and turn

on,

5 Confirm that the PWR indicator on the DC-DC CONV is ON,

6 Pull out the PWR switch lever of the MODEM and turn on,

7 Confirm that the PWR indicator on the MODEM is ON.

1+1 SYSTEM

1 Check that the IF cable between the No.1 MODEM and the No.

1 ODU, is connected,

2 Connect the power cable to –43 V/OUT of the No.1 DC DC

CONV and SELV of the No.1 MODEM as shown in Fig 3-1 (2/

2),