Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL DA-191A RFL Electronics Inc.
July 23, 2001 6 (973) 334-3100
9. On the DA-191A check the setting of DIP switch SW2-4.
SW2-4 (TERM) selects the DA-191A transmit bus direction. Set to the UP position
to communicate via the DI-B port in a drop/insert multiplexer. Set to the DOWN
position in a terminal multiplexer, or to communicate via the DI-A port in a
drop/insert multiplexer.
10. On the DA-191A check the setting of DIP switch SW2-2.
SW2-2 (T1) selects the multiplexer type. Set UP for E1 multiplexers, or DOWN for
T1 multiplexers.
11. On the DA-191A check the setting of DIP switch SW2-1.
SW2-1 (CAS) selects payload/CAS signaling. If this card is being installed in an E1
multiplexer, set the CAS switch to the UP position to leave time slot 16 available
for payload, to the DOWN position to reserve time slot 16 for CAS signaling. This
switch is active only when the card is set to operate in an E1 multiplexer.
12. On the DA-191A check the setting of DIP switch SW2-3.
SW2-3 (LOOP) selects data loopback on or off. Verify that data loopback is turned
OFF by setting the switch to the UP position.
13. On the DA-191A check the setting of DIP switch SW3-1 through SW3-6.
SW3-1 through SW3-6 controls the SCB address of the DA-191A. Set these
switches to achieve the desired SCB address by setting in accordance with Table 7.
This step is not strictly necessary unless you will be using the remote access and
control feature, but it is advisable to set each card to a different address during
installation in order to simplify the activation of remote operation in the future.
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