Kramer Electronics VS-162AVRCA - Manual (Page 19)

Installing the Audio-Video Matrix Switcher
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You can connect any of the following:
• 2 units, using a Null-modem adapter (see section 6.4.1.1) or without
using a Null-modem adapter (see section 6.4.1.2)
• The PC’s DB9 COM port to a unit with a Null-modem adapter (see
section 6.4.1.3) or without a Null-modem adapter (see section 6.4.1.4)
• The PC’s DB25 COM port to a unit without a Null-modem adapter
(see section 6.4.1.5)
6.4.1.1 Connecting 2 Units using a Null-modem Adapter
To connect 2 units, using a Null-modem adapter provided with the machine
(default):
1. Connect a flat cable 1
2. On the second unit, set DIP 7 OFF (enabling Null-modem adapter use).
between the RS-232 OUT DB9 port on the first unit
and the Null-modem adapter that attaches to the RS-232 IN DB9 port on
the second unit.
6.4.1.2 Connecting 2 Units without using a Null-modem Adapter
To connect 2 units, without using a Null-modem adapter:
1. Connect a flat cable 1 between the RS-232 OUT DB9 port on the first unit
and the RS-232 IN DB9 port on the second unit.
2. On the second unit, set DIP 7 ON (disabling Null-modem adapter use 2
6.4.1.3 PC DB9 COM Port Connection to a Unit with a Null-modem Adapter
).
To connect the PC’s DB9 COM port to a unit, using a Null-modem adapter:
1. Connect a flat cable 1 between the PC’s DB9 COM port and the Null-
modem adapter that attaches to the RS-232 IN DB9 port on the unit.
2. Set DIP 7 OFF (enabling Null-modem adapter use 2 ) on the unit.
6.4.1.4 PC DB9 COM Port Connection to a Unit with no Null-modem Adapter
To connect the PC’s DB9 COM port to a unit, without using a Null-modem
adapter:
1. Connect a flat cable 1 between the PC’s DB9 COM port and the RS-232
IN DB9 port on the unit.
2. Set DIP 7 ON (disabling Null-modem adapter use 2 ) on the unit.
1 Straight one-to-one uncrossed connections with at least the 3 wires pins # 2, # 3 and # 5
2 See section 6.3