Clear-Com 4000 series II, Technical Manual

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Technical Manual Issue 2.1 4000 Digital Series
II
Page 92 STA0381
4.8.4 PDE4645 - Optional GPI card
PDE4645 is an optional GPI card for fitting onto a PDE4643 in the case of small systems.
It is in effect a reduced capacity PDE4619 containing 12 opto-isolated inputs and 12 relays.
4.8.5 PDE 4628 - Serial Communications Rear Connector Unit (SCRCU)
The PDE 4628 is a 16-channel serial communications rear connector unit (SCRCU) for use with a
CODEC board within the 4000 Series II system. The communications standard is RS422 for each
channel.
A 4920 matrix can hold up 12 PDE 4628 board pairs and therefore support 192 serial data link channels.
A 4420 matrix can hold up 4 PDE 4628 board pairs and therefore support 64 serial data link connections
The SCRCU is designed to enable the serial connection of 4000 and 3000 series panels to a 4000
matrix.
Table 11: PDE4663B - Serial 1 and 2
Description
Pin
Number
- 1
Data Receive (Rx) 2
Data Transmit (Tx) 3
- 4
Screen 5
- 6
- 7
- 8
- 9