User`s manual

Set the jumpers for the correct interface as described below.

Remove the screws securing the daughterboard to the

SYNC/57Oi.

Pull the daughterboard from the

SYNU57Oi.

mere

are two connectors

holding the daughterboard. Do not use a twisting motion.)

Install the jumper for the correct interface for each port. The positions

of the jumpers are shown in Figures 4 and 5. The jumpers control the

lines as follows:

JPI-Jp5

line 1

JPG-JP

line 2

JPll-JPl5

line 3 (4 port board only)

JP16-JP20

line 4 (4 port board

only)

The jumper block on the daughterboard has 3 rows of 5

pins.

v.35

When the jumpers are on the top 2 rows of pins, the

connectors interface with V.35 devices.

EIA-232-D When the jumpers are on the bottom 2 rows of pins, the

connectors interface with EIA-232-D devices.

The position of the jumper block shown in Figure 6 is upright with

the small 1 at the upper left comer.

Fgure

6, lumper positions for

V.35

and E&232-D

v.35

EIA-232-D

Reconnect the daughterboard to the

SYNW57Oi

by matching the

connectors and screw wells. Push the daughterboard onto the

SYNC/57Oi

and replace the screws. Continue with board installation

as described in Section 4.

Appendix

V.35/EL4-232-D

Daughterboard