1 and figure 3-4, Figure 3- 4, Nd figure 3-4 for the – CANOGA PERKINS 2240 Fiber Optic Modem User Manual
Page 40: Internal clock option switches
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Chapter 3 Mode and Rate Selection
2240 Fiber Optic Modem User Manual
Internal Clock Option Switches
40
removed from the shelf. Be sure to disconnect power before removing the
cover.
Factory setting: OFF
Figure 3-4 Location of Internal Switches and Jumpers (factory settings are illustrated)
INTERNAL OPTION
SWIT
CHES
FA
CT
OR
Y
SET
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF ON
CD/DCD
CD/SYNC
ALM/CHAN
ALM/L
OC
ALM/REM
ALM/INV
CLK/EX
T
TBL/NORM
INTERNAL
OPTION
SWIT
CHES
RELA
Y
OPTION
JUMPER
C
ONT
A
C
T
POWER
JUMPERS
EXP
ANDED INTERF
A
C
E
C
ONNECT
OR
NC
NO
ON
OFF
ON
OFF
ST
ANDARD
INTERF
A
C
E
C
ONNECT
OR
AU
X
INTERF
A
C
E
C
ONNECT
OR
HI/L
OW
OPTICS
POWER SWIT
CHES
OSCILLA
T
OR
3 L
O
CA
TION
RL
Y
ALM+
ALM-
SCT CL
OCK
PHASE
EX
TRA CL
OCK
NORM
RT
S
T
X
OPT
CHASSIS
FL
O
A
T
SIGNAL GROUND JUMPER
RES.
FOR
FUTURE
USE
NORM
INV
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