V180808N
T-APS Users Manual
Page 7
Redundant CPE Applications
The T-APS can be used for switching a T1/EI circuit between two sets of CPE for redundant equipment
operation. The Working Mode selection can be either 1+1, Blind 1 or Blind 2.
In the 1+1 and Blind 1 modes, TX signals from the CO will be present at each of the two CPE devices.
In Blind 2 mode only the current selected working path will see the TX signals. The alternate path will not
provide TX to it’s associated CPE while the Protective Path is working
.
3: SET LINE FORMAT
T1 Setting Selections: [ UNFRAMD SF
ESF ]
E1 Setting Selections: [ UNFRAMD CAS CCS CAS&C
CCS&C ]
4: SET LINE CODE
T1 Setting: Selections -
[
B8ZS
AMI ]
E1 Setting: Selections -
[
HDB3
AMI ]
5: RX SENSITIVITY (NETWORK)
Selections – [ LONG
SHORT ]
LONG: T1 Setting Sensitivity is –36 dB.
E1 Setting Sensitivity is –43 dB.
SHORT: T1 Setting Sensitivity is –15 dB.
E1 Setting Sensitivity is –10 dB
6: SET BUILDOUT (NETWORK)
T1Setting Selections: [
DSX1-1
DSX1-2 DSX1-3 DSX1-4 DSX1-5 -7.5dB -15dB -22dB ]
DSX1-1 0 to 133 feet
DSX1-2 133 to 266 feet
DSX1-3 266 to 399 feet
DSX1-4 399 to 533 feet
DSX1-5 533 to 655 feet
-7.5dB CSU
-15dB CSU
-22dB CSU
E1 Setting Selections
: [
120Nor
120Hi ]
120 Nor:
120
Ω
Normal Return Loss.
120 Hi:
120
Ω
High Return Loss.
7: RX SENSITIVITY (USER)
Selections - [ LONG
SHORT
]
LONG: T1 Setting Sensitivity is –36 dB.
E1 Setting Sensitivity is –43 dB.
SHORT: T1 Setting Sensitivity is –15 dB.
E1 Setting Sensitivity is –12 dB.
