3200 Series Standalone and 3200 Series 1+1 System Installation Guide
34
2.5.4.3
Optical Interface (OC3/STM-1)
A 3200-STM1 and 3200-STM+1, each with one main and one backup OC3 or STM1 port enables the
connection to OC3/STM1 lines. See
of optical interfaces. The default SFP module for OC3/STM1 connection is SMF, intermediate reach,
(SFP-OC3-IR1) 1310 nm with LC type connectors.
Note
Make certain that the correct SFP model is selected at the time of ordering. If your
installation requires a different model from the one that has been provided, you must
replace it.
Table
2.4
Optical
Interfaces
Automatic Protection Switching
The APS port is used for OC3/STM1 redundancy. Switchover occurs automatically based on
configurable parameters. It is recommended that APS be used if the installation provides this feature.
Note
Patch panels use straight connections. In other words, they do not cross the RX and TX
signals. You must connect RX to RX, and TX to TX between the 1+1 patch panels and
3200 series 1+1 system. Cables used to connect the network to the 1+1 patch panel
must do the cross connection.
To connect both the 3200-STM1 and 3200-STM +1 (Optical Interface) to the PSTN:
1.
Connect each OC3/STM1 line of the network section of the 1+1 patch panel to the remote
equipment. See
35.
2.
Connect a fiber optic cable between STM1 of the Gateway section of the 1+1 patch panel and the
main port of the 3200-STM1.
3.
Connect a fiber optic cable between APS of the Gateway section of the 1+1 patch panel and the
APS port of the 3200-STM1.
4.
Connect a fiber optic cable between STM1 of the Gateway 1+1 section of the 1+1 patch panel and
the main port of the 3200-STM1 +1.
5.
Connect a fiber optic cable between APS of the Gateway 1+1 section of the 1+1 patch panel and
the APS port of the 3200-STM1 +1.
Optional
1.
Connect bits port 0 and 1 from the 3200-STM1 to the 1+1 patch panel
2.
Connect bits port 0 and 1 from the 3200-STM1+1 to the 1+1 patch panel
Transceiver Model
Description
Spec
Mode
Type
Range
(Km.)
Wavelength
(NM)
Connection
SFP-OC3-IR1
OC3/STM1
Hot Pluggable
Single-mode
Intermediate reach
15
1310
LC
SFP-STM1E
STM1E (Electrical)
Hot Pluggable
75 ohms Cooper
Max 180m
1
NA
DIN (mini-coax)