Slt Adapter; Using The Slt Adapter (Figure 4-56 - Figure 4-58); Installing The Slt Adapter - NEC Aspire S Manual

Section 4: Telephones and Optional Equipment

SLT ADAPTER

Using the SLT Adapter (Figure 4-56 - Figure 4-58)

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 provides the ring generator circuit used by the analog device. The unit provides constant
current which is fixed at 47 mA.
Refer to Single Line Telephones in the Software Manual for more details.

Installing the SLT Adapter

1.
2.
3.
4.
5.
6.
7.
8.
Refer to Single Line Telephones in the Software Manual for programming details.
4-58 ◆ Section 4: Telephones and Optional Equipment
The SLT Adapter supports Caller ID if provided by the telco.
Maximum Cable Distance From ESIU
Loop Resistance
Punch down one pair 24
AWG station cable for
each SLT Adapter to a
cross-connect block.
Run one-pair cross-con-
nect from the cross-con-
nect block to the extension
(B) block for each SLT
Adapter.
Connect the extension (B)
block's 25-pair cable to
the corresponding RJ-61
connector on the ESIU
PCB.
Install bridging clips on
the extension (B) block.
Install a modular jack for
the SLT Adapter within
six feet of the module's
location.
Terminate the station
cable WHT/BLU - BLU/
WHT leads to the RED and GRN lugs in the modular jack.
Plug a line cord into the SLT Adapter's connector marked "ESIU". Plug the opposite end of the
line cord into the modular jack.
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.
600m @ 24 AWG
500 ohms
Analog Single Line
Telephone
Figure 4-56: INSTALLING THE SLT ADAPTER
To ESIU
Port
Aspire S Hardware Manual