Rad-data-comm ASM-20 Manual de usuario descargar pdf (Pagina 43)

ASM-MN-214 Card Cage 5-1

Chapter 5

Card-Cage Version

This chapter describes the ASM-20/R card version, designed for installation in the

ASM-MN-214 card cage. The chapter describes:

• ASM-MN-214 card cage

• ASM-20/R card version

• ASM-20/R power supply

• How to install ASM-20/R.

5.1 ASM-MN-214 Card Cage

The ASM-MN-214 card cage contains one or two power supplies and up to 14

plug-in cards. The card types can be ASM-20/R or other RAD rack version

modems/converters - any combination of up to 14 plug-in cards.

For each of the 14 cards, the rear panel (see Figure 5-1) contains a male connector

for the terminal block and a DB-25 connector. A protection cover protects the

terminal block connectors.

The terminal block (see Figure 5-1) is to be attached to the rear panel terminal

block connectors. It contains screws for connecting the transmit and receive pairs

and ground, if present.

The 25-pin D-type female interface connector provides all interface signals for the

digital interfaces. Modems with X.21 or V.35 interface require an external

mechanical adapter. Two optional interface attachments, CIA/V.35/1 and

CIA/X.21, can be ordered separately from RAD. CIA/X.21 converts two adjacent

DB-25 connectors to two X.21 15-pin connectors. CIA/V.35/1 converts one DB-25

connector to a V.35 34-pin connector. V.36 modem cards are supplied with a

RAD adapter cable CBL 530/449F, which converts the DB-25 connector to a V.36

37-pin connector. The adapter cable and two interface attachments are also

shown in Figure 5-1.

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Rad-data-comm ASM-20 Manual de usuario Pagina 43