User manual

INSTALLATION

Section 2

2-2

RESET

Figure 2.2 DPX-213 Jumper Locations

J4: Removing this jumper reduces current consumption by disabling the front panel

LEDs.

J5: Removing this jumper stops the V.24 DTR input which controls the standby mode

of the DPX-213. Without this jumper set, the unit will not wake up on raise of DTR

and will not be held active by the DTR when the unit is placed in standby mode.

J8: This jumper enables the sync clocks on the V24 interface. When Pins 1 and 2

are shorted no sync clocks will be present at the interface. When Pins 2 and 3 are

selected, both Rx and Tx sync clocks will be placed on Pins 17 and 15 of the DB25

connector.

2.2 Connecting the DPX-213 to the Telephone Line

Remove your telephone from its wall socket (you may need a flat bladed screwdriver for

this) and plug one end of the supplied cable into the socket labelled "J2 LINE" on the rear

of the DPX-213 and plug the other end into the wall socket. The terminal prompts will

give call progress indication.

NOTE: 1. Dataplex does NOT recommend the use of double adaptors to connect your

telephone in parallel with the DPX-213. Should the handset be lifted when the

modem is online, noise and errors will be injected into the data stream.

2. If the handset draws power from the telephone line (for example, to keep stored

numbers intact or to run a clock display) the battery charging current can be a

source of noise and errors in the data during long modem sessions. A long data

call may cause the telephone memory battery to discharge and lose the stored

numbers.