2. Connect the other end of the SMB coaxial cable to the 10-MHz or 1-PPS source network equipment.
NOTE:
Ensure that the 10-MHz and 1-PPS sources are 50 ohms LVCMOS / LVTTL (3.3v)
compatible.
Connecting a T1 or E1 External Clocking Device to the Router
The router contains an external building-integrated timing system (BITS) timing port labeled EXT REF CLK
IN on the front panel of the router.
To connect the router to a BITS T1/E1 external clocking device:
1. Attach an electrostatic discharge (ESD) grounding trap on your bare wrist, and connect the strap to
one of the ESD points on the chassis.
2. Plug one end of the RJ-45 cable into the internal clock port on the craft interface.
3. Plug the other end of the RJ-45 cable into the T1 or E1 external clocking device.
4. Verify that the LEDs for the external clock input is lit steadily green.
5. Configure the port. See:
•
Initially Configuring the ACX2000 or ACX2100 Router on page 111
•
Configuring External Clock Synchronization for ACX Series Routers
6. Issue the show chassis synchronization command to check the status of the port.
user@host>
show chassis synchronization
Clock Synchronization Status :
Clock module on CB 0
Current state : master
Current clock state : internal
Selected for : 13 days, 23 hours, 15 minutes, 17 seconds
Selected since : 2012-10-29 18:28:35 EDT
Deviation (in ppm) : +0.00
Last deviation (in ppm): +0.00
Clock Synchronization Status :
Clock module on CB 1
Current state : backup
Current clock state : locked to master CB
109
Summary of Contents for ACX2000
Page 1: ...ACX2000 and ACX2100 Universal Metro Router Hardware Guide Published 2020 09 07 ...
Page 91: ...Front Panel of an ACX2000 Router 47 LEDs on ACX2000 and ACX2100 Routers 57 91 ...
Page 116: ...4 CHAPTER Maintaining Components Maintaining ACX2000 and ACX2100 Components 117 ...
Page 125: ...5 CHAPTER Troubleshooting Hardware Troubleshooting ACX2000 and ACX2100 126 ...
Page 139: ...139 ...
Page 144: ...Restricted Access Warning 144 ...
Page 148: ...148 ...
Page 161: ...Jewelry Removal Warning 161 ...
Page 164: ...Operating Temperature Warning 164 ...
Page 174: ...DC Power Disconnection Warning 174 ...
Page 178: ...DC Power Wiring Sequence Warning 178 ...