CHAPTER 3 NDA-24296
Page 186
Revision 1.0
PH-CK16
Phase Lock Oscillato r
5. Switch Settings
Standard settings of switches on this circuit card are shown in the table below.
SWITCH
NAME SETTING STANDARD
SETTING MEANING
MB UP C irc uit card Ma ke- busy.
DOWN ×C ircui t card Ma ke- busy can c el.
SW03 1 - F 1 Fixed to 1.
SWITCH
NAME SWITCH
NO. SETTING STANDARD
SETTING MEANING
SW01
1ON ×Clock subordinate office.
OFF Clock sour ce office.
2ON Digital Clock Supply route zero (DCS 0) is u sed.
OFF Digital Clock S upply route zero (DCS 0) is not used.
3ON Digital Clock S upply route one (DCS 1) is used.
OFF Digital Clock Supply route one (DCS 1) is not used.
4
ON 8 KHz of Frame Head signals are extracted from the DCS
signals (w hich is composed of 64 KHz + 8 KHz).
OFF 8 KHz of Fram e Head signals are not extracted from the DCS
signals (w hich is composed of 64 KHz + 8 KHz).
5
ON When clock source f ailure has occurre d in all suppl y r oute s, th e
P L O outputs the orig ina l cl o ck of th e int er n al os ci llat o r.
OFF When cl ock so urce fa ilure h as not o ccurre d in all supp ly rou tes,
the PLO continues out putting the current phase c lo c k.
6ON This circuit card is associated with SYNC (PA-CK16) card and
5 m Frame Pulse (FP) is supplied by the SYNC card.
OFF This circuit card is not associated with SYNC (PA-CK16) card.
7ON A-law CODEC is used for the hold music.
OFF ×µ-law CODEC is used for the hold music.
8OFF ×Not used.