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Installation Manual Pyramid DC Receiver
FITTING NETWORK CARDS
To connect the DC receiver to the network, it is first necessary to ensure that the correct Pyramid network card is fitted to
the PCB. The cards that can be used are as follows:
PY-COM Combined network card. Can be configured for use in RS485 and RS422 networks. Automatic
baud-rate selection between low and high speeds (9.8k b.p.s. or 78k b.p.s.).
PY-FTT Compatible with FTT10 (Flexible Topology) 2-wire bus-connected, half duplex. High speed only.
PY-422 Compatible with RS422, 4-wire point-to-point, full duplex. Available in low and high speed variants.
PY-485 Compatible with RS485, 2-wire bus-connected, half duplex. Available in low and high speed variants.
PY-FI7 and PY-FI9 Compatible with dual, multi-mode fibre optic point-to-point connections. PY-FI7 operates at 78k
b.p.s., PY-FI9 operates at 9.8k b.p.s.
If the correct network card is not already fitted, change it using Figure 9 as a guide.
To avoid damaging the module, switch off the power before fitting the network card.
Figure 9 - Fitting a Network Card
Once a network card has been fitted, it must be connected to the network through CON19. If the card is a PY-COM, it may
also need to be configured via a group of dip switches. See the following sections for more details.
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