Symmetricom SSU-2000 User Manual page 290

Index
D—E
checklist
readiness to test 120
clock
backup 53
overview 31
Clock C 30 229
,
Clock D 53
Clock module
Stratum 2E 41 140
,
Stratum 3E 41 144
,
Type 1 42 148
,
clock termination switch S2
commissioning test sheet
communication interfaces, main shelf
communications
overview 31
port assignments 70
port overview 39
ports, defined 70
protocol 49
Communications module
alarm logic 155
alarms 156
block diagram 153
front panel 154
software loads 50
Composite Clock Input module
block diagram 185
default settings 187
front panel 186
Composite Clock Output module
block diagram 212
front panel 213
specifications 214
configuration
backing up 116
changing 115
default, changing 113
Ethernet port 92
monitor only 26
PRS 26
restoring 117
TSG 25
connecting 71
connectors
external, main shelf
local oscillator 72
remote reset 72
critical alarm
overview 156
Cut-Through Assembly
installing 252 255
–
overview 245
pinout 255
290 SSU-2000 User's Guide
77 79
,
126
70
90
,
42 152
,
43 184
,
44 211
,
37
Cyclical Redundancy Check. See CRC
D
D Clock 53
DE9 Output Adapter panel
default configurations
default settings
CC Input module 187
defaults, restoring 114
direct digital synthesis (DDS)
disabling a module, procedure
documentation, related
DS1 Input module
block diagram 171
Cesium fault 175
factory defaults 178
front panel 177
DS1 Line Re-timing module
block diagram 247
front panel 249
installing 250 252
–
specifications 257
DS1 Output module
block diagram 208
front panel 209
DTE/DCE switch, location
DTE/DCE switch, serial port
E
E1 Input module
block diagram 161
Cesium fault 165
default values 168
front panel 167
E1 Line Re-timing module
front panel 260
installing 261
specifications 263
E1 Output module 44
block diagram 205
front panel 206
E1/2048 kHz Output module
block diagram 230
front panel 231
specifications 232
EIA-232 port 71 156
,
assignment 70
connector pinout 72
protocol 70
electromagnetic interference considerations
61
12713020-002-2 Revision F – October 2006
266
113
31
83
21
45 245
,
38
71
45 258
,
44 225
,