user manual

ET1 NUMBER: MK-012
DATE: DECEMBER 1988 /
NOTE
If noise interference is encountered durin.g
operation, it may be necessary to use shielded cable.
6.1.8 Install the ECR-E ETU in an available interface slot in a CCU making
sure that the busy switch (SWl) is in the OFF position. After the ECR-E
ETU is properly seated in its slot, turn on SWl. (Refer to Chapter 3 of the
Electra Mark II Installation Service Manual Memory Block 4Cl.)
6.2 R&31X Connection
6.2.1 Connect the other end of the station cable as follows:
TERMINAL STATION CABLE
4 Center terminal of RCA plug.
::
Ground side of RCA plug.
A Side of ECR relay.
8
B Side of ECR relay
Also, install a 100 ohm + watt resistor across terminals four and five, in
parallel for reducing voice level (See Figure 1).
6.2.2 Plug in one end of the 8 conductor modular cable into the M-31X.
6.3 Installing and programming the AEC 212 Plus Announcer (Refer to Figure 1)
NOTE:
6.3.1
6.3.2 Set the start mode switches on the back of the unit as follows:
6.3.3
6.3.4
Ensure that the 212 Plus power pack is disconnected from the Announcer
unit before proceeding.
Refer to the AEC 212 owner’s manual and set the internal jumper plugs (1
per channel) for 600 ohms transformer coupled audio output. (These
jumpers are internal to the AEC equipment).
SWITCH SETTING
SW1
8%
OFF (continuous play)
OFF
SW4 ON (relay closure start)
Plu the other end of the 8 conductor modular cable to the Line 1 jack on
the
%
ack of the AEC 212 Plus unit.
The AEC Model 212 Plus Announcer provides two ports. that can be
independently recorded. By manually switching port connections, DAY
and NIGHT announcements can be provided. (See Figure 1).
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