ADTRAN FT1 DP manual Practices, Option Settings, HDSL Quick Installation Guide, Switch, Function

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

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