1
Section 61242.047L2-13, Issue 1
61242.047L2-13A
HDSL Quick Installation Guide
for ADTRAN FT1 DP and FNID
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.
PRACTICES
Description
Selects between alternating and contiguous DS0 channels.
When this switch is closed, the unit automatically detects the line code as B8ZS or
AMI.
When SW1-2 is open, SW1-3 open selects B8ZS line code, while SW1-3 closed
selects AMI.
When this switch is closed, Auto Frame Mode detection is enabled and the unit
selects between SF and ESF modes automatically. When open, SW1-5 manually
selects the framing mode.
When SW1-4 is open, SW1-5 closed selects SF. SW1-5 open selects ESF.
This switch is used to enable or disable latching loopbacks.
SW1-7 is used to enable or disable automatic loopback timeout.
Sets the data pattern sent to the customer upon FNID network loopback.
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.
When SW3-1 is closed, auto idle code detection is enabled and the unit selects
between 7F (Hex) and FF (Hex).
When SW3-1 is open and SW3-2 is closed, selects FF (Hex). When SW3-2 is open,
selects 7F (Hex).
This switch enables or disables A/B signaling for Channel 1-8 of the selected FT1
channels.
This switch enables or disables A/B signaling for Channels 9-12 of the selected FT1
channels.
Switch
Function
SW1-1 ............. Channel Select
Closed ............. Alternate
Open ............... Contiguous
SW1-2 ............. Auto Code Detect
Closed ............. Auto
Open ............... Manual
SW1-3 ............. Manual Code Select
Closed ............. AMI
Open ............... B8ZS
SW1-4 ............. Auto Frame Detect
Closed ............. Auto
Open ............... Manual
SW1-5 ............. Framing
Closed ............. Superframe Format (SF)
Open ............... Extended Superframe Format (ESF)
SW1-6 ............. Latching Loopback
Closed ............. Enabled
Open ............... Disabled
SW1-7 ............. Loopback Timeout
Closed ............. 20 Minutes
Open ............... None
SW1-8 ............. Loopback Keep Alive
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
SW3-1 ............. Idle Code Detect
Closed ............. Auto
Open ............... Manual
SW 3-2 ............ Idle Code
Closed ............. FF
Open ............... 7F
SW4-1-SW4-8 Channels 1-8 A/B Signaling
Closed ............. Enabled
Open ............... Disabled
SW5-1-SW5-5 Channels 9-12 A/B Signaling
Closed ............. Enabled
Open ............... Disabled
FNID
SW1, SW2
20 mA, 60 mA
Off, On
Option Settings
(arrows indicate default settings)
POWER
LOCAL SPAN
SW1
DS1 SEALING CURRENT
SW2
20MA
60MA
OFF
ON
Powered
by -48
VDC
Powered
by span
current
Sealing current disabled
Sealing current enabled
20 mA sealing current select
Indicates default setting
