7.4 Connecting Outputs
55
7.3.5
Programmable Pulse (PROG PULSE)
Models 1084A/B/C series clocks have an independent programmable pulse feature that requires
some jumper and firmware configuration. Models 1084B/C may be configured from the front panel
and 1084A must be configured through the RS-232 port. Programmable pulse modes include setting
the pulse width and time zone. To configure, please see Sections 5.2 and 6.7.
Prog Pulse Mode
Configured Feature
Seconds Per Pulse
X number of seconds between pulses, 0 – 60,000
Pulse Per Hour
Number of seconds after each hour, 0 – 3599
Pulse Per Day
Hour, Minute, Second, Fractional Seconds
Single Trigger
Day, Hour, Minute, Second, Fractional Seconds
Slow Code
ON or OFF
Pulse Polarity
positive or negative–going pulse
Table 7.3: Programmable Pulse Types
7.4
Connecting Outputs
All clocks come equipped with BNC female connectors, however if you are using twisted pair cabling,
you can use a BNC breakout. See the reference below
, or other similar adapter.
NOTE: If using a shielded, twisted-pair cable (like Belden 8760), DO NOT connect the cable shield
at the clock. Always connect a cable shield at the receiving equipment (IED) grounding point.
7.4.1
Attaching Cables to Screw Terminals
Some of the option boards mounted in the Model 1084A/B/C series clocks have screw terminals
instead of BNC connectors to connect wiring. To mount wiring to screw terminals, prepare the
twisted pair cable by stripping back at least 1/4” of the insulation and any shielding; DO NOT
tin the bare wire. Tighten the screws down on the wire. Do not ground the shield to the Arbiter
clock, rather ground it at the receiving end.
7.4.2
How Far Can I Run IRIG-B Cabling?
Before laying cable to transmit IRIG-B over long distances, take time to consider the following
factors: (1) resistive losses in cabling, (2) electromagnetic interference, (3) propagation delays and
(4) installation and maintenance costs.
For details on distributing IRIG-B signals over long distances, see application note, AN101, Dis-
tributing Timing Signals in a High-EMI Environment. Download file appnote101.pdf at the follow-
ing link below.
1
Pomona Electrics, www.pomonaelectronics.com, (800) 444-6785, (425) 446-6010, part no. 4969 and 4970
Содержание 1084A
Страница 4: ...iv ...
Страница 6: ...vi ...
Страница 18: ...xviii LIST OF FIGURES ...
Страница 23: ...1 4 Attaching Rack Mount Ears to 1084A B C Series Clocks 3 Figure 1 2 Attaching Rack Mount Ears ...
Страница 24: ...4 Unpacking the Clock ...
Страница 36: ...16 Connecting Inlet Power Input and Output Signals ...
Страница 39: ...4 1 GPS Antenna Installation 19 Figure 4 2 Antenna Mounting Bracket Figure 4 3 Antenna Mounting with AS0044600 ...
Страница 44: ...24 GPS Antenna and Cable Information ...
Страница 114: ...94 Startup and Basic Operation ...
Страница 123: ...B 4 Physical Dimensions 103 Figure B 1 Suggested Mounting of the AS0094500 Surge Arrester ...
Страница 124: ...104 Using Surge Arresters ...
Страница 134: ...114 Options List C 6 2 Option 06 Firmware Setup Figure C 3 Option 06 Firmware Setup ...
Страница 142: ...122 Options List Figure C 5 Option 06 Output Jumper Settings ...
Страница 143: ...C 6 Option 06 Parallel BCD Output 1 millisecond Resolution 123 Figure C 6 Option 06 Board Layout and Jumper Locations ...
Страница 157: ...C 10 Option 17 Parallel BCD Output and Second RS 232C Port 137 Figure C 12 Option 17 Output Jumper Settings ...
Страница 158: ...138 Options List Figure C 13 Option 17 Board Layout and Jumper Locations ...
Страница 163: ...C 13 Option 20A Four Fiber Optic Outputs 143 Figure C 14 Option 20A Jumper Locations ...
Страница 170: ...150 Options List Figure C 16 Option 23 Internal Jumper Setup ...
Страница 172: ...152 Options List Figure C 17 Option 27 Jumper Locations ...
Страница 190: ...170 Options List Figure C 20 Option 29 Connector Signal Locations ...
Страница 246: ...226 Options List ...