ADTRAN Total Access 850 System Manual page 194

Section 4 User Interface Guide
Step
1 From the main menu, select I
Highlight the C
2
Right arrow to select M
3
(E&M), TR08 S
This mode should be set based on the network configuration and the operation
of each FXS port. All FXS ports are independent and do not need to have the
same mode.
Set the T
4
recommended.
Set the R
5
recommended.
6 Set the S
Set the L
7
The default value is recommended.
Set the M
always open, even in on-hook conditions, in order for FXS message tones to
8
pass through. Disabling this feature will allow higher on-hook voltage but will
not allow on-hook messaging other than caller ID.
Configure the on-hook battery voltage using the B
IAD installs, the FXS loop is short with 6 to 7 V present on tip / ring. To reduce
power dissipated during off-hook conditions, the battery is lowered for short
loop lengths. When set to A
9 battery voltage (48-52 V). When off-hook, it automatically switches to low
battery (24-26 V) to minimize power dissipation. When set to L
mode, the higher battery is not used and the voltage is a constant 26 V even
while on-hook. The tip/ring voltage is reduced to 26 V when using the L
B
ATTERY
Specify the interval of battery removal during a forward disconnect state
using the F
750
choice of I
Total Access 850 will follow the switch at all times; this is normal operation. If a
10 time period has been selected, the Total Access 850 will remove battery for
the specified time period OR as long as the switch requests battery removal,
whichever is longer. For example, if the timer expires but the switch continues
to request battery removal, the Total Access 850 will follow the switch and
continue to remove battery. For ATM mode, if the timer is set to I
S
WITCH
194
FXS Interface Setup Instructions
menu for the FXS interface and press <E
ONFIG
ODE
, TR08 UVG, or DPO.
INGLE
(dB) or transmit direction level for each port. The default value is
X
(dB) or received direction level for each port. The default value is
X
M to I S
VC ODE N ERVICE
Z (line impedance) of each port based on the size of the network.
INE
I to D
SG ND ISABLE
mode.
D T field. Choices are F
WD ISC IMER
, 1000 , and 2000
MS MS MS
S . If the timer is set to F
GNORE WITCH
, the IAD will never remove battery.
© 2004 ADTRAN, Inc.
Action
.
NTERFACES
and choose L S
OOP TART
to activate the port.
or E . When set to E
NABLE
ATT
S , the IAD uses a higher on-hook
UTO WITCH
OLLOW
. When using ATM mode, there is an additional
OLLOW
Total Access 850 System Manual
>.
NTER
, G S , T
ROUND TART ANDEM
, talk path is
NABLE
M field. For most
ODE
B
OW ATTERY
OW
S (default), 500
WITCH MS
S , the
WITCH
GNORE
64203376L1-1B
,