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4.3
Mainframe control of relay card
The following information pertains to the Model 7013
relay card. It assumes that you are familiar with the
operation of the Model 7001 mainframe.
If you are not familiar with the operation of the main-
frame, it is recommended that you proceed to Getting
Started (Section 3) in the Model 7001 Instruction Man-
ual after reading the following information.
4.3.1 Channel assignments
The Model 7001 has a channel status display (Figure
4-3) that provides the real-time state of each available
channel. The left portion of the display is for slot 1
(Card 1), and the right portion is for slot 2 (Card 2).
With two Model 7013 cards installed in the mainframe,
only the 20 available channels of each card will be dis-
played as shown in Figure 4-3.
1
2
3
= Open Channel
= Closed Channel
Figure 4-3
Channel status display (two Model 7013 cards installed)
7001 DISPLAY
CARD 1
4
5
6
7
8
Relay organization of the channel status display for
each slot is shown in Figure 4-4. The relay card contains
20 channels as shown in the illustration.
To control the relay card from the mainframe, each
relay must have a unique CHANNEL assignment,
which includes the slot number that the card is
installed in. The CHANNEL assignments for the relay
card are provided in Figure 4-5. Each CHANNEL
assignment is made up of the slot designator (1 or 2)
and the relay card channel. To be consistent with
Model 7001 operation, the slot designator and relay
card channel are separated by an exclamation point (!).
Some examples of CHANNEL assignments are as
follows:
CHANNEL 1!1 = Slot 1, Channel 1
CHANNEL 1!20 = Slot 1, Channel 20
CHANNEL 2!2 = Slot 2, Channel 2
CHANNEL 2!6 = Slot 2, Channel 6
9
10
1
2
3
CARD 2
4
5
6
7
8
9
Operation
10
4-3
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