Installation DXC5K/EN
IN/A22
DXC 5000
Page 17/34
E&M Card
LEDs
J28
Top Side
New Version
O
ld
V
er
si
on
ETSI Mode
ETSI+Revert Mode
ANSI Mode
ANSI+REVERT
J28
without JUMP
with JUMP
J28
J28
J28
J28
J28
Revert Mode
J28
ANSI Mode
J28
ANSI+REVERT
Note: for BOM version C04-C7
or lower
Note: for BOM version C04-C7
or higher
D0530ENa
FIGURE 14: SHORT LINE AND JUMPER SETTING FOR EM CARD SIGNALLING BIT MODE
2 Wire
4 Wire
Pin No.
Pin Name
A, B Side
A Side
B Side
4, 5
Ring, Tip
Transmit, Receive
Transmit
Receive
3, 6
Ring1, Tip1
—
Receive
Transmit
TABLE 14: VOICE CHANNEL DIRECTION - E&M CARD
Signaling Direction
A Side
B Side
A to B
B to A
E lead
M lead
M lead
E lead
ON HOOK
ON HOOK
OPEN OPEN OPEN OPEN
ON HOOK
OFF HOOK GROUND
OPEN
OPEN
CLOSE
OFF HOOK ON HOOK
OPEN
CLOSE
GROUND
OPEN
OFF HOOK OFF HOOK GROUND
CLOSE
GROUND
CLOSE
TABLE 15: E&M SIGNALING CHANNEL DIRECTION