AT&T 585-300-903 manual Tx1 Rx1 Tx2 Rx2

DCP Mode 1 Installation and Administration 10-9

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NOTE

If the faceplate of the MPDM reads ACCUNET, then the D-kit has already been installed and you should not need to modify the MPDM in any way. In this case, skip to step 2.

a.Install the 56 Kbps D-181509 kit by following the instructions included with the kit. The D-kit is used to modify the MPDM so it will work with 56 Kbps facilities.

b.Install the V.35 DTR card in the MPDM. The V.35 card allows a call to be answered without an attached DTE device.

To see if the V.35 card has already been installed, power up the MTDM without having a DTE attached. The Terminal Ready LED on the MPDM will be on if the V.35 DTR interface has previously been installed.

c.Solder two loops or build and connect a male loopback plug to make the connections shown in Figure 10-5, V.35 Male Connector.

V.35 MALE CONNECTOR

P (Tx1)

R (Rx1)

S (Tx2)

T (Rx2)

Figure 10-5.V.35 Male Connector

2.Install the MPDM/M1* by following the instructions that come with the data module.

3.Set all MPDM option switches to OFF (left) except the following:

∙Set OFF/56K to 56K

∙Set ASYNCH/SYNC to SYNC

∙Set EXT/INT to INT

∙Set OFF/ANET to ANET

∙Set OFF/AANS to AANS