21
Installing the Equipment
2.4.3.3
Optical Interface (OC3/STM-1) for the 3200-STM1
A 3200-STM-1, with one main and one backup OC3 or STM1 port enables connection to OC3/STM1
lines. See
21 for a listing 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
Please 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
2.3
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.
To connect the 3200-STM1 (Optical Interface) to the PSTN:
1.
Connect a fiber optic cable between the Port 0 (Main) port and OC3/STM1 line, as shown in
2.
Connect a second fiber optic cable between the Port 1 (APS) port and OC3/STM1 line.
Figure
2.6
3200-STM1Optical Interface to the PSTN
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)
MGMT0
ETH
VOIP
0
1
0
1
TMS
0
1