RSS_v180808n RSS Series Page 37
8. Basic A/B Cards
Basic A/B Switch Cards provide circuit switching individual or gang applications and can be controlled remotely
thru the network control card, external contact closures, or locally from front panel switches. Magnetic latching
relays maintain selected circuit connectivity, A or B, in the event of a power loss. Automatic switching can be
arranged using features in the IPC-1-R Network control card, such as “Auto Ping” where switching is activated as
the result of the loss of response from a networked device. See “A “Auto Ping” on page 28 for more detail.
8.1. A/B Cards, Current Models
All A/B cards listed below use relay switching and are compatible with any communications interface and
switching up to 10Mbps, or as noted. All connectors are female gender except as noted below. All support the full
complement of leads. If the 16 A/B switch cards are not being used they are replaced with blank plates.
D25 Connectors for RS-
232, RS-530 etc.
D15 Connectors for X.21,
AUI, etc
232, RS-422, RS-423, RS-
HD44 Connectors for high
density I/O applications
Amphenol) for Station sets,
connector is male, A and B are
V.35 with M34 Winchester
connectors.
Suitable for all applications
Dual A/B Models switch both sets
of interfaces simultaneously.
Dual BNC for DS-3, and
applications up to 800Mhz
Dual A/B Models switch both sets
of interfaces simultaneously.
The switch card is configured for switching between redundant TI lines wired in an RJ48C configuration.
When either line is selected, A or B the unused line is placed in loopback.
Please refer to Section 8.7, Interface Wiring Section of manual for more detail.
New models are being added. Please contract Dataprobe for the most current list.
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