Verilink 1558D (34-00255) Product Manual Bedienungsanleitung PDF herunterladen (Seite 11)

Installation 2-31558D APS CSU/DSU

AC Power

The 1558D unit operate from 115 VAC, 75 mA maximum.

The unit is shipped with a 5.5 foot 3-prong industry standard

AC power cord. After all wiring connections have been

completed, attach the unit to the AC wall receptacle. The

unit responds by turning on the front panel (green) LED

power indicator. The user is now ready to configure the

1558D. The following sections describe how to quickly con-

figure the 1558D unit.

Configuration Modes

Any time that the 1558D unit is initialized (power removed,

then reapplied), all key configuration data is read by the

1558D CPU and implemented based upon the particular

configuration boot mode options selected by the user. There

are four possible configuration boot modes:

• Configure/Boot from Switches

• Configure/Boot from ROM.

• Configure/Boot from RAM.

• Configure/Boot from Manager. This requires the optional

1559 manager.

All factory default settings in this manual are

shown underlined.

Switch Configuration

After the equipment has been unpacked and inspected and

mounted, the next step is to configure the unit. All unit

options are set by the manual DIP switch positions located

on the four rear panel option switches (S1, S2, S3, and S4).

The 1558D is shipped from the factory with all option

switches in the OFF (factory default) positions. The follow-

ing paragraphs briefly describe the 1558D option switches

and there functions.

After the option switches have been set to the

desired operating mode, recycle the power to the

unit. At power up, the CPU will read and imple-

ment the switch settings.

PTION

WITCH

Switch S1 is an eight position DIP switch used to set the

following unit options.

• Master or Slave Card Operation

• Boot general parameters from Switches, ROM, RAM, or

Manager

• Boot alarm parameters from ROM or RAM

• Enable/Disable Framing Error Alarm

• Enable/Disable Loss of Signal Alarm

• AMI/B8ZS Line Encoding, NET A, NET B

The following table describes the DIP switch settings con-

trolled by Switch S1.

PTION

WITCH

Switch S2 is an eight position DIP switch used to set the

following unit options.

• CSU Mode, Enable/Disable

• Path Revert, Enable/Disable

• NET A, LBO Value

• NET B, LBO Value

• Clocking Mode, Internal, External, Network

Table 2-G describes the DIP switch settings controlled by

Switch S2.

Data Terminal Ready 108 DTR H

Data Carrier Detect 109 DCD F

Transmit Clock 113,114 TC Y, AA

Receive Clock 115 RC V, X

External Clock 113 ext.TC U, W

Test Mode 142 TM K

Table 2-E V.35 Pinouts

Function CCITT Name

Direction

DTE/DCE

1558D

V. 35

Table 2-F Switch S1

Position Selection Switch S1 Description

1Off

Card Function, Slave

Card Function, Master

2,3 Off, Off

Off, On

On, Off

On, On

Boot from Switches

Boot from Manager

Boot from RAM

Boot from ROM

4Off

ARM from ROM

ARM from RAM

5Off

Enable Frame Error Alarm

Disable Frame Error Alarm

6Off

LOS, Enabled

LOS, Disabled

7Off

NET/A, B8ZS

NET/A, AMI

8Off

NET/B, B8ZS

NET/B, AMI

Table 2-G Switch S2

Position Selection Switch S2 Description

1Off

CSU Mode, Enabled

CSU Mode, Disabled

2Off

Path Revert, Disabled

ON = Path Revert, Enabled

3,4

Off

, Off

Off, On

On, Off

On, On

NET A LBO Value

0.0 dB

7.5 dB

15.0 dB

22.5 dB

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 41 42

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