Hi Everyone.

I hope everyone is doing okay..

I need some help on hooking up a Teltone EX18 Expansion unit to my C 19 Unit. The part that I am understating is what is the purpose of the single digit inputs and outputs on the expansion unit if they are on the main unit. To my understanding, the single digit transfer digit from the main unit will connect to the X(A) and X(B) groups on the Expansion unit. Could be something very simple that I am not getting or overlooking


To add 19 stations to an intercom u. ,t, the intercom
connect block's R1 through RO outputs must be
connected to the 11 through 10 inputs on the expansion
module connect block. Similarly, for each added
expansion modUle, R outputs are brought from the
preceding connect block to the I inputs of the next
connect block, as shown in Figure 4

Transfer digits are assigned by strapping single-digit R
outputs to the X(A) and X(B) terminals. For example,
F:gure 4 shows strapping for 10's and 30's stations at
R1 and R3.
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NOTES:
1. ALL TEN LINES GO TO NEXT EX·18A BUT ONLY NUMBERS
NOT USED AS TRANSFER DIGITS ARE AVAILABLE FOR
SINGLE DIGIT TELEPHONES.

2. ALL THESE DIGIT CHOICES ARE OPTIONAL. FOR
INSTANCE, IF USER WANTS 60'S TELEPHONES
INSTEAD OF 30'S, USE R6 RATHER THAN R3.

Here is the link to the Teltone Practice.


https://www.telephonecollectors.inf...tercoms-ocr-r?highlight=WyJ0ZWx0b25lIl0=

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Last edited by morephones; 01/17/22 02:23 AM.