DXOPT–SYN Board Indicators
PRI and SEC (green LEDs)
The PRI and SEC LEDs on the DXOPT-SYN card light to indicate where the
receive clock reference is originating from—the primary or secondary DXPT1
board location. When two or more DXPT1 boards are installed, you make the
primary and secondary assignments via jumpers on the the DXAUX board. If
only one DXPT1 board is installed, you can set the jumpers so that both LEDs
will light.
UNLOCKED (red LED)
When lit, the Unlocked LED indicates either that the straps on the Auxiliary
board are set incorrectly, that the DXOPT-SYN card is defective, that the receive
frequency is out of tolerance (1.544 Mhz
±
200 Hz), or that no valid ISDN–PRI
line is connected..
MANUAL (red LED)
This LED, when lit, indicates that the manual mode has been selected via the
AUTO/MANUAL mode switch on the DXOPT-SYN card. When you select the
manual mode (normally for maintenance/troubleshooting ), you can select either
the primary or secondary timing reference by setting the PRI/SEC switch on the
DXOPT-SYN card. For normal operation, select the automatic mode. Do not
manually force the clock reference to primary or secondary if the appropriate
green LED is not lit. This will cause the VCO oscillator to default to its
minimum or maximum tolerance, and the T1/PRI board(s) will not
frequency-lock.
Installing And Programming The DXPRI Card
IMI89–255
Understanding The T1/PRI Alarms And Indicators – 33
Содержание DXP Plus Series
Страница 1: ...Digital Communications System R ...
Страница 363: ...Automatic Call Distributor Technical Manual R QuickQ DXP ...
Страница 424: ...Automatic Call Distributor System Manager s Guide R QuickQ DXP ...
Страница 500: ...Wrap up Time 1 6 Wrapping Up A Call 4 3 Z Zoom Box A 2 GCA70 271 Index I 3 ...
Страница 628: ...Interconnecting The VMI X Installing And Programming For ExecuMail IMI89 206 Installing And Programming For ExecuMail 5 ...
Страница 677: ...Connecting The Equipment Installing And Programming The OPX X IMI89 209 Installing The OPX X 7 ...
Страница 728: ...DP I I I I and FX Series Digital Communications Systems Understanding The Visual Man Machine Interface COMDlA ...
Страница 1112: ...9 08 8 90 1 13 4 78 3 94 UNIS029 TAB003 PLS page 6 GCA40 130 DXP Plus General Description 11B Telephone Features ...