Version 5.4
47
May 2008
SIP Hardware Installation Manual
3. Installation
¾
To connect the STM-1/OC-3 PSTN interface, take these 3 steps:
1.
Remove the protective dust plug from the SFP transceiver module.
2.
Connect a twin, single-mode fiber optic cable with LC-type plugs to the STM-1/OC-3
PSTN SFP transceivers (labeled
PSTN
-
A
).
3.
For redundancy, connect a twin, single-mode fiber optic cable with LC-type plugs to
the second pair of STM-1/OC-3 SFP transceivers (labeled
PSTN
-
B
).
Figure
3-2: Cabling the PSTN Fiber Optic Interface
Notes:
•
To ensure full 1+1 redundancy protection, the fiber optic cables must be
connected to corresponding PSTN connectors on the RTM-6310 (i.e.,
PSTN ports
A
and
B
).
•
The RTM-6310 contains both T3 and STM-1/OC-3 interface ports.
However, only one interface type can be supported per deployment
(software configurable using the PSTNTransmissionType
ini
file
parameter).
3.3.2.2 Connecting T3 PSTN Interfaces
The RTM-6310 provides three pairs of Molex mini-SMB receptacles for providing up to
three T3 PSTN interfaces. Each mini-SMB pair provides a female connector for receiving
and a female connector for transmitting. These SMB jacks must be connected to coaxial
cables (not supplied).
To interface with the SMB receptacles, you need to provide (i.e., not supplied) the following
items:
Cable:
RG-179/U coaxial cable (refer to figure below).
Connector:
75-Ohm male mini-SMB terminated on a coaxial cable (refer to figure
below).
