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SP503 Datasheet, PDF (25/29 Pages) Sipex Corporation – Multiprotocol Transceiver
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EDGE
CONNECTOR
DUT PIN
DESCRIPTIONS
01 TxD (pin 14) –TTL Input – Transmit
data; source for SD(a) and SD(b) out-
puts.
02 DTR (pin 13) – TTL Input – Data
terminal ready: source for TR(a) and
TR(b) outputs.
03 ST/TT (pin 6) –TTL Input – ST/TT
select pin; enables ST drivers and dis-
ables TT drivers when high. Disables
ST drivers and enables TT drivers when
low.
04 DEC3/RDEC3 (pin 5) – TTL Input –
Transmitter/Receiver decode register.
05 TDEC2/RDEC2 (pin 4) – TTL Input –
Transmitter/Receiver decode register.
06 TDEC1/RDEC1 (pin 3) – TTL Input –
Transmitter/Receiver decode register.
07 TDEC0/RDEC0 (pin 2) – TTL Input –
Transmitter/Receiver decode register.
08 RxD (pin 1 ) – TTL Output – Receive
data; sourced from RD(a) and RD)b)
inputs.
09 CTS (pin 80) – TTL Output – Clear to
send; sourced from CS(a) and CS(b)
inputs.
10 RxT (pin 79) – TTL Output – RxT;
sourced from TT(a), TT(b) inputs.
11 DSR (pin 78) – TTL Output – Data set
ready; sourced from DM(a) and DM(b)
inputs.
12 RD(b) (pin 71) – Analog In – Receive
data, non–inverted; source for RxD.
EDGE
CONNECTOR
DUT PIN
DESCRIPTIONS
13 RD(a) (pin 70) – Analog In – Receive
data, inverted: source for RxD.
14 DM(b) (pin 69) – Analog In – Data
mode, non–inverted; source for DSR.
l5 DM(a) (pin 68) – Analog In – Data
mode, inverted; source for DSR.
16 CS(b) (pin 67) – Analog In – Clear to
send; non–inverted; source for CTS.
17 CS(a) (pin 66) – Analog In – Clear to
send, inverted; source for CTS.
18 TT(b) (pin 65) – Analog Out –
Terminal timing, non–inverted:
sourced from TxC input.
19 TT(a) (pin 63) – Analog Out –
Terminal timing; inverted: sourced
from TxC input.
20 TR(a) (pin 58) – Analog Out – Termi-
nal ready, inverted; sourced from DTR.
21 TR(b) (pin 56) – Analog Out – Termi-
nal ready; non–inverted; sourced from
DTR.
22 SD(a) (pin 61) – Analog Out – Send
data, inverted; sourced from TxD.
23 SD(b) (pin 59) – Analog Out – Send
data; non–inverted; sourced from TxD.
24 RS(a) (pin 54) – Analog Out – Ready to
send; inverted; sourced from RTS.
25 RS(b) (pin 52) – Analog Out – Ready
to send, non–inverted; sourced from
RTS.
Date: 7/29/04
SP503 Multiprotocol Transceiver
25
© Copyright 2004 Sipex Corporation
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