Hardware Installation Manual 26 Document #: LTRT-94720
Mediant 3000
3.3.2 RTM-6310 Rear Transition Module
The RTM-6310 (housed in the rear panel) operates with the TP-6310 blade (housed in the
front panel). These two blades connect through the chassis midplane. RTM-6310 provides
the I/O interface connections to the IP (Gigabit Ethernet) and PSTN (i.e., STM-1/OC-3 or
T3) networks.
Figure 3-8: RTM-6310 Ports
Item # Label Description
1 ETHERNET
Dual Gigabit Ethernet ports for 1+1 Redundancy (RJ-45 or
optical SFP)
2 T3
PSTN T3 - three pairs of T3 SMB TX/RX connectors
3 ATM
N/A for current release.
4 PSTN
PSTN STM-1/OC-3 interfaces - two pairs of SFP TX/RX
receptacles for redundancy
Note: The device's T3 support is available in 1, 2, or 3 T3 interfaces configuration.
The table below describes the RTM-6310 port interfaces.
Table 3-9: RTM-6310 Ports Description
Interface Port Label Description
STM-1/OC-
3 PSTN
SFP
PSTN
A, B Two pairs of small form-factor pluggable
(SFP) Tx/Rx receptacles for STM-1/OC-3
interface. The dual STM-1/OC-3 interface
provides 1+1 redundancy (A and B make a
redundant pair - APS for PSTN interfaces).
An SFP cage is provided with an SFP 155-
Mbps optical module for attaching an
optical fiber with an LC-type optical
connector.
T3 PSTN SMB
T3
A, B,
C
Up to three pairs (Tx/Rx) of SMB RF
connectors, supporting up to three T3
PSTN interfaces.
GbE RJ-45
ETHERNET
1, 2 Two 10/100/1000Base-TX RJ-45 ports for
GbE LAN interfaces (1+1 redundancy). The
connection to the LAN is typically through
Category 5 (Cat 5 twisted-pair copper
cabling) LAN cables.
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