i
ANSI Port ................................................................................................................................... 3-13
Inputs .......................................................................................................................................... 3-13
Outputs........................................................................................................................................ 3-13
Battery......................................................................................................................................... 3-13
LCD/Select Button ............................................................................................................................ 3-14
Reconnect/Boost/Billing Reset Button............................................................................................. 3-15
Servicing ............................................................................................................................................ 3-15
Chapter 4 The Mk7A Meter....................................................................... 4-1
Dimensions and Mounting.................................................................................................................. 4-1
External Features................................................................................................................................. 4-4
Under the Terminal Cover .................................................................................................................. 4-5
Finger Guard................................................................................................................................. 4-7
Terminal Cover Tamper Detect................................................................................................... 4-8
Under the Meter Lid............................................................................................................................ 4-8
CT to VT Links ............................................................................................................................ 4-8
Config Jumper.............................................................................................................................. 4-8
Connections in Detail.......................................................................................................................... 4-9
Current and Voltage..................................................................................................................... 4-9
RS-232 ........................................................................................................................................ 4-11
RS-485 ........................................................................................................................................ 4-11
FLAG Port.................................................................................................................................. 4-11
ANSI Port ................................................................................................................................... 4-12
Inputs .......................................................................................................................................... 4-12
Outputs........................................................................................................................................ 4-12
Battery......................................................................................................................................... 4-12
LCD/Select Button ............................................................................................................................ 4-13
Reconnect/Boost or Billing Reset Button ........................................................................................ 4-14
Servicing ............................................................................................................................................ 4-15
Chapter 5 The Mk7C Meter....................................................................... 5-1
Dimensions and Mounting.................................................................................................................. 5-1
Hanging Extension....................................................................................................................... 5-4
External Features................................................................................................................................. 5-5
Under the Terminal Cover .................................................................................................................. 5-6
Finger Guard................................................................................................................................. 5-9
Terminal Cover Tamper Detect................................................................................................. 5-10
Inside the Meter................................................................................................................................. 5-10
CT to VT Links .......................................................................................................................... 5-10
Config Jumper............................................................................................................................ 5-10
Connections in Detail........................................................................................................................ 5-11
Current and Voltage................................................................................................................... 5-11
RS-232 Passive........................................................................................................................... 5-12
RS-232 Active............................................................................................................................ 5-13
RS-485 Passive........................................................................................................................... 5-14
RS-485 Active............................................................................................................................ 5-14
FLAG Port.................................................................................................................................. 5-15
ANSI Port ................................................................................................................................... 5-15
Inputs .......................................................................................................................................... 5-15
Outputs........................................................................................................................................ 5-16
Battery......................................................................................................................................... 5-16
LCD/Select Button ............................................................................................................................ 5-16
Connect / Boost Button..................................................................................................................... 5-17
Fitting a Modem ................................................................................................................................ 5-18
Servicing ............................................................................................................................................ 5-20
ii EDMI Atlas Hardware Reference Manual
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