ADTRAN Total Access 850 System Manual page 201

Total Access 850 System Manual
Step
1 From the main menu, select I
Highlight the C
2
Right arrow to select M
3
T
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
value is recommended.
Set the R
5
value is recommended.
6 Set the S
Set the L
7
network. The default value is recommended.
Set the M
always open, even in on-hook conditions, in order for FXS message
8
tones to 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
most 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 a higher on-hook 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
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
Specify the interval of battery removal during a forward disconnect state
using the F
500
an additional choice of I
S
Total Access 850 will follow the switch at all times; this is normal
10 operation. If a 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
remove battery.
64203376L1-1B
FXS Interface Setup Instructions
menu for the FXS interface and press <E
ONFIG
ODE
(E&M), TR08 S
ANDEM INGLE
(dB) or transmit direction level for each port. The default
X
(dB) or received direction level for each port. The default
X
M to I S
VC ODE N
Z (line impedance) of each port based on the size of the
INE
I to D
SG ND ISABLE
D T
WD ISC IMER
, 750 , 1000 , and 2000
MS MS MS
GNORE
, the
WITCH
© 2004 ADTRAN, Inc.
Action
.
NTERFACES
and choose L S
OOP TART
, TR08 UVG, or DPO.
to activate the port.
ERVICE
or E . When set to E
NABLE
UTO
B mode, the higher battery is not
OW ATTERY
B
OW
field. Choices are F
OLLOW
. When using ATM mode, there is
MS
S . If the timer is set to F
WITCH
S , the IAD will never
GNORE WITCH
Section 4 User Interface Guide
>.
NTER
, G S ,
ROUND TART
, talk path is
NABLE
M field. For
ATT ODE
S , the IAD uses
WITCH
mode.
ATTERY
S (default),
WITCH
OLLOW
201