HDSL Quick Installation Guide

for ADTRAN FT1 DP and FNID

PRACTICES

Three eight-position switch packs (SW1, 2, 4) and two four-position switch packs (SW3, 5) are used to configure FT1 DP mode of operation as listed in the table below. Refer to ADTRAN Installation/Maintenance practices for more information.

 

 

Option Settings

 

 

(arrows indicate default settings)

 

 

 

 

Switch

Function

Description

 

SW1-1

Channel Select

Selects between alternating and contiguous DS0 channels.

Closed

Alternate

 

 

Open

Contiguous

 

 

 

 

 

 

SW1-2

Auto Code Detect

When this switch is closed, the unit automatically detects the line code as B8ZS or

Closed

Auto

AMI.

Open

Manual

 

 

 

 

 

 

SW1-3

Manual Code Select

When SW1-2 is open, SW1-3 open selects B8ZS line code, while SW1-3 closed

Closed

AMI

selects AMI.

Open

B8ZS

 

 

 

 

 

 

SW1-4

Auto Frame Detect

When this switch is closed, Auto Frame Mode detection is enabled and the unit

Closed

Auto

selects between SF and ESF modes automatically. When open, SW1-5 manually

Open

Manual

selects the framing mode.

 

 

 

 

SW1-5

Framing

When SW1-4 is open, SW1-5 closed selects SF. SW1-5 open selects ESF.

Closed

Superframe Format (SF)

 

 

Open

Extended Superframe Format (ESF)

 

 

 

SW1-6

Latching Loopback

This switch is used to enable or disable latching loopbacks.

Closed

Enabled

 

 

Open

Disabled

 

 

 

 

 

SW1-7

Loopback Timeout

SW1-7 is used to enable or disable automatic loopback timeout.

Closed

20 Minutes

 

 

Open

None

 

 

 

 

 

SW1-8

Loopback Keep Alive

Sets the data pattern sent to the customer upon FNID network loopback.

Closed

AIS

 

 

Open

All 1s, framed

 

 

SW2-8, 2-7 ...... DS1 Transmit Level

Open, Open .... 0 dB

Open, Closed .. -7.5 dB

Closed, Open .. -15 dB

Closed, Closed -22.5 dB

The DS1 signal level delivered to the customer through the FNID may be selected as one of four values: 0, -7.5, -15, or -22.5 dB.

SW3-1

Idle Code Detect

When SW3-1 is closed, auto idle code detection is enabled and the unit selects

Closed

Auto

between 7F (Hex) and FF (Hex).

Open

Manual

 

 

 

 

SW 3-2

Idle Code

When SW3-1 is open and SW3-2 is closed, selects FF (Hex). When SW3-2 is open,

Closed

FF

selects 7F (Hex).

Open

7F

 

 

 

 

SW4-1-SW4-8

Channels 1-8 A/B Signaling

This switch enables or disables A/B signaling for Channel 1-8 of the selected FT1

Closed

Enabled

channels.

Open

Disabled

 

 

 

 

SW5-1-SW5-5

Channels 9-12 A/B Signaling

This switch enables or disables A/B signaling for Channels 9-12 of the selected FT1

Closed

Enabled

channels.

Open

Disabled

 

 

 

 

FNID SW1, SW2 20 mA, 60 mA Off, On

 

 

 

 

SW1 DS1 SEALING CURRENT SW2

 

 

 

POWER

 

 

 

Sealing current disabled

 

 

 

20MA

OFF

 

 

 

 

LOCAL SPAN

 

 

60MA

ON

 

 

Sealing current enabled

 

 

 

 

 

 

 

Indicates default setting

 

 

20 mA sealing current select

Powered

Powered

 

 

 

by -48

by span

 

 

VDC

current

 

 

61242.047L2-13A

Section 61242.047L2-13, Issue 1

1

 

 

 

Page 1
Image 1
ADTRAN FT1 DP manual Option Settings, 61242.047L2-13A 047L2-13, Issue, Ami, B8ZS, Ais