Administering E1 and T1 Services
Verifying E1 and T1 parameter settings
MAX Administration Guide
5-19
Table 5-8 summarizes the T1-specific parameters that are available, the location of the
parameter in the VT100 interface, and whether or not the setting you specify is determined by
your E1 services carrier.
Fractional T1-specific parameters
The VT100 interface of the MAX unit that supports Host/Dual (or Host/6) modules includes a
Host/Dual (or a Host/6) menu. Specify fractional T1 settings by using five fractional
T1-specific parameter in the Port N menu’s Directory profile. Evaluate the settings of
fractional T1 parameters as you verify the proper configuration of the unit intended to support
fractional T1 services.
Table 5-9 summarizes fractional T1-specific parameters.
Table 5-8. T1-specific parameters
Parameter
Description
Buildout
Specifies the line buildout value for T1 lines with an internal CSU
(Channel Service Unit). The buildout value is the amount of attenua-
tion the MAX unit should apply to the line's network interface in order
to match the cable length from the unit to the next repeater.
Attenuation is a measure of the power lost on a transmission line or on
a portion of that line. When you specify a build-out value, the MAX
unit applies an attenuator to the T1 line, causing the line to lose power
when the received signal is too strong. Repeaters boost the signal on a
T1 line. If the MAX unit is too close to a repeater, you need to add
some attenuation.
FDL
Specifies the FDL (Facilities Data Link) protocol that the MAX unit
uses. FDL is a protocol used by the telephone company to monitor the
quality and performance of T1 lines. This parameter does not apply to
D4-framed T1 lines.
Hunt-n
(
N
=1-3
)
These parameters indicate the hunt group numbers associated with the
T1 line in a specific Line N profile. An SNMP manager can retrieve
these numbers from Lucent Technologies devices and store them in a
table that includes the devices from which information is retrieved and
the hunt group numbers in their WAN Line Profiles. The numbers
entered in the Hunt-N # parameters must be the same as the numbers
that are assigned to T1 channels, creating the hunt group.
Table 5-9. Fractional T1-specific parameters
Parameter
Description
FT1 Caller
Specifies whether the MAX unit initiates an FT1-AIM, FT1-B&O, or
Nailed/MPP call or whether it waits for the remote end to initiate these
types of calls. If the remote end has FT1 Caller set to
No
, set it to
Yes
on
the local MAX unit; by the same token, if the remote end has FT1 Caller
set to
Yes
, set it to
No
on the local MAX unit.