
Chapter 1 Introduction Installation and Operation Manual
1-4 Physical Description ASM-40CD Ver. 1.0
P12
P10
P11
POWER
SYNC LOSS1
SYNC LOSS2
RTS1
DCD1
RTS2
DCD2
TEST1
TEST2
TD1
TD2
RD1
RD2
F4
F3
F6
F5
F1 F2
Figure 1-4. ASM-40CD Card Layout
Six fuses are used in ASM-40CD, with four on the backboard (see
Figure 1-4
).
Table 1-1
describes each fuse.
Table 1-1. Fuse Data
Name Function
F1, F2 1A for the +135V phantom power supply line
F3 1A for the –5V power supply
F4 1A for the +5V power supply
F5 500 mA for phantom of modem 1 power supply
F6 500 mA for phantom of modem 2 power supply
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