Installation Manual 26 Document #: LTRT-94704
Mediant 3000 & IPmedia 3000
2.5.2 RTM-6310 Rear Transition Module
The RTM-6310 is housed with the 6310 blade. The blade (housed in the front panel),
connects to the RTM-6310 (housed in the rear panel) through the backplane. 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 2-10: RTM-6310 Ports Location
The table below describes the RTM-6310 port interfaces.
Table 2-11: RTM-6310 Interface Ports Description
Interface Port
Type
Label Description
STM-
1/OC-3
PSTN
SFP (x2)
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.
ATM SFP (x4)
ATM
1A, 1B,
2A, 2B
Not applicable (ATM interface is not supported in
this current release).
T3 PSTN SMB (x3)
T3
A, B, C Three pairs (Tx/Rx) of SMB RF connectors,
supporting up to three T3 PSTN interfaces.
GbE RJ-45
(x2)
ETHERNET
1, 2 Two (1+1 redundancy) 10/100/1000Base-TX RJ-
45 ports for Gigabit Ethernet (GbE) LAN
interfaces. The connection to the LAN is typically
through Category 5 (Cat 5 twisted-pair copper
cabling) LAN cables.
Note: Instead of RJ-45 ports, 1000Base-SX 1.25
Gbps multi-mode optical SFP transceiver using
850 nm wavelength can be provided (customer
ordered). In such a scenario, the connection to
the LAN is through fiber optic cables.
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