iPECS UCP
Hardware Description and Installation Manual Issue 1.3
28
3.1.8.2 SLTM8
The SLTM8 (Single Line Telephone Module) allows standard analog Single Line Telephone (SLT)
devices access to CO Lines, other stations, and most features of the system through the use of
“dial codes”. The SLTM8 provides interface circuitry for eight (8) SLTs. Each interface is equipped
with appropriate speech codec and compression functions, -40 volt DC feed circuit, pulse and
DTMF dial signal detection. A ring generator and message wait source are integrated in the
SLTM8. The SLTM8 supports T.38 protocol for Fax over IP.
The SLTM8 allows Single Line Telephones to be connected up to 4 Kilometers (13,000 feet) from
the gateway using 24 AWG wire.
The SLTM8 includes a 10/100 Base-T Ethernet interface as well as packet voice processing
functions. The Ethernet port incorporates auto MDI, MDIX switching, therefore, both straight and
cross cables can be used.
As shown in Figure 3.1.8.2-1, the front panel of the SLTM8 has:
Power jack for the AC/DC adapter; see 3.1.15 AD/DC adapter –G-
Normal/Service switch – In Service mode, circuits in use are
busied as they return to idle
RJ-45 Female LAN connector with Speed and Link/Activity
LEDs
Two (2) green power status LED
PWR1 - + 5 VDC
PWR2 - + 3.3 VDC
Eight (8) SLT LEDs, one for status of each SLT
Reset Switch
DB-9 RS-232 connector
On the rear panel, the SLTM8 has:
Eight (8) RJ-45 female connectors
Ground Lug
Fifty (50)-pin back plane connector
Figure 3.1.8.2-1 SLTM8 Front & Rear Panels
To Next Page
Loading...
