Section 4: Telephones and Optional Equipment
4-58
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Section 4: Telephones and Optional Equipment
Aspire S Hardware Manual
SLT ADAPTER
Using the SLT Adapter
The SLT Adapter converts a digital port from an ESIU PCB into an analog port which can be used for con-
necting on-premise 2500 type single line devices (i.e., telephones, fax machines, modems, etc.) and to telco
OL13B/C OPX circuits. The system allows up to 8 SLT Adapters to be installed - each one requiring a
digital port.
The SLT Adapter supports Caller ID if provided by the telco.
The SLT Adapter provides the ring generator circuit used by the analog device. The unit provides constant
current which is
fi
xed at 47 mA.
Refer to
Single Line Telephones
in the Software Manual for more details.
Installing the SLT Adapter
1.
Punch down one pair 24
AWG station cable for
each SLT Adapter to a
cross-connect block.
2.
Run one-pair cross-con-
nect from the cross-con-
nect block to the extension
(B) block for each SLT
Adapter.
3.
Connect the extension (B)
block's 25-pair cable to
the corresponding RJ-61
connector on the ESIU
PCB.
4.
Install bridging clips on
the extension (B) block.
5.
Install a modular jack for
the SLT Adapter within
six feet of the module’s
location.
6.
Terminate the station
cable WHT/BLU - BLU/
WHT leads to the RED and GRN lugs in the modular jack.
7.
Plug a line cord into the SLT Adapter’s connector marked “ESIU”. Plug the opposite end of the
line cord into the modular jack.
8.
Plug a second line cord into the SLT Adapter’s connector marked “TEL”. The opposite end of the
line cord should be plugged into the analog device to be used.
Refer to
Single Line Telephones
in the Software Manual for programming details.
Maximum Cable Distance From ESIU
600m @ 24 AWG
Loop Resistance
500 ohms
0893100 - 17
Analog Single Line
Telephone
To ESIU
Port
Figure 4-56: INSTALLING THE SLT ADAPTER