8
Installation Guide
Coaxial Interface
The coaxial interface provides two BNC connectors. The transmit (TX)
port is located above the receive (RX) port. Each connector supports a
maximum segment length of 1200 feet. Use only RG-59 cables.
Fiber Optic Interface
The line card’s fiber optic receive (RX) port is located above its
transmit (TX) port.
The fiber optic multimode (MM) interface supports a maximum
segment length of 2km for remote links.
The standard singlemode (SM) connector supports a maximum
segment length of 15km.
On the R115-27 and R175-27, the singlemode long haul interface
supports a maximum segment of 40km.
On the R115-2J and R175-2J, the singlemode extended long haul
interface supports a maximum segment length of 100km.
BWDM Connection
The bidirectional wavelength division multiplexed (BWDM) port
provides one singlemode SC connector that supports a maximum
segment length of 20km. BWDM line cards must always be used in
complementary pairs. That is, a -2X model must always be connected
to a -2Y. The -2X cards are designed to transmit data at a wavelength of
1550nm and receive at 1310nm. Correspondingly, the -2Y cards
transmit data at 1310nm and receive at 1550nm.
AT
PWR
LK
T3
RX
LK
TX
FX
M
M
II
x
PWR
100
FD
RX
LK
TX
10/100
RX
LK
TX
FX
M
M
II
x
PWR
100
FD
RX
LK
T
X
TX
10/100
AT
RX
E3
II
x
PWR
100
FD
RX
RX
LK
LK
T
X
M
M
FL
TX
TX
10/100
II
x
II
x
PWR
100
FD
100
FD
RX
RX
LK
LK
T
X
T
X
TX
TX
10/100
S
M
E1
M
M
T1
RX
LBK
RX
T1
MGT-10
LK
AT
C
O
N
S
O
L
E
T
P
PWR
A
B
R
ER
FX
PWR
RX
RX
LK
LK
M
M
FL
TX
TX
10/100
M
M
PWR
T3
RX
LK
TX
FX
M
M
II
x
PWR
100
FD
RX
LK
T
X
TX
10/100
RX
LK
TX
FX
M
M
II
x
PWR
100
FD
RX
LK
T
X
TX
10/100
PWR
R
X
LK
LK
M
M
T
X
100 BASE
PWR
RX
RX
LK
LK
M
M
FL
TX
TX
10/100
FX
M
M
RX
LK
TX
FX
M
M
II
x
PWR
100
FD
RX
LK
T
X
TX
10/100
R
X
M
M
T
X
AT
AT
PWR
LBK
LBK
PWR
PWR
LBK
PWR
ALM
ALM
R
X
T
X
R
X
T
X
R
X
T
X
R
X
T
X
R
X
T
X
S
M
RX
LBK
ALM
RX
LBK
ALM
RX
LBK
ALM
RX
LBK
ALM
LK
LK
LBK
LBK
MAN
TX
FX
MM
TX
FX
TX
FX
MAN
MAN
SM
LK
T
X
R
X
T
X
R
X
T
X
R
X
BWDM
