Model: MC-1-DE
Doc Ref. No:-m05dom102
Issue No:-00
Page 25 of 76
User’s Manual
Available Antenna Cables and Accessories for Longer Runs
masibus
masibus
masibus
masibus
offers longer antenna cables for use with models GPS Time Sync Unit when the standard
15 meters (50-foot) cable is inadequate. RG-6 cable runs up to 50 meter, RG-8 cable is available for
100 meters (328 foot) without the in-line preamplifier.
masibus
masibus
masibus
masibus
offers in-line amplifier, (P/N: m-LA-
01) for long antenna cable requirement up to 200 meters (656 foot).
Description
Delay, ns
Signal Level, dB
15-m (50-ft) cable, RG-6
60 ns
5dB
30-m (100-ft) cable, RG-6
120 ns
9dB
50-m (164-ft) cable, RG-6
200 ns
15dB
100-m (328-ft) cable, RG-8
393 ns
17dB
Table 1 Antenna Mounting
Connection to Antenna
The male Type N connector on one end of the antenna cable mates with the female Type N connec-
tor on the antenna.
Connection to GPS Time Sync Unit
The male Type BNC connector on the opposite end of the antenna cable connects to the female Type
BNC connector on the front panel of the GPS Time Sync Unit.
6.2 Unit Installation
After GPS Antenna installation is complete, GPS TIME SYNC UNIT MC-1-DE unit can be installed as
per below procedures.
•
It is necessary to provide correct power supply to unit as per specified order or as per power
supply specification mentioned at the unit’s Front panel.
•
Ensure that the power supply polarity connections are done as per mentioned Label on specific
power supply connector terminal on rear panel.
•
It is recommended to not connect the NTP outputs in installation site Ethernet network till proper
network settings are done in unit.
•
After the power supply is connected properly, Refer section 7.3 for the Unit Power ON status.
•
At startup, the clock of unit in Unlock conditions may not be correct if the unit was in Power OFF
condition for long duration. Refer section 7.1 and 7.2.
•
It is necessary to change the Ethernet addresses of unit NTP output ports individually (connecting
NTP port directly with PC using Ethernet cable) before using GPS as NTP server.
•
After unit settings and configuration is done, user should provide power restart to unit.
•
After unit Power ON, unit should be kept in LOCK condition for warm up duration.
•
Once unit is Power ON, it is necessary to keep the unit in LOCK condition for minimum 1 hour for
precise and accurate timing outputs during unit LOCK and Holdover conditions.
