Specifications

Integrator’s Reference Manual for Polycom HDX Systems
2–12 Polycom, Inc.
RS-530 with RS-366 Serial Cable
This cable connects a Polycom HDX system to third-party network equipment.
It is used with the V.35/RS-449/RS-530 serial adapter on page
V.35/RS-449/RS-530 Serial Adapter on page 2-7 to connect to network
equipment that has an RS-530/RS-366 interface. It is HD-68M to “Y” DB-25M
and is used with Polycom HDX systems that have a serial network interface
card (NIC) installed.
Length Part Number RoHS Compliant
5 ft (1.65 m) 2457-21263-200 Yes
Peripheral Link V.35 HD-68 Pinout
Notes (direction from V.35 module (DTE))
68 pin Signal Name Signal Type From card Function RS530-DB25 RS366-DB25
Shield V.35/RS449/RS530 7,18,19#
12 Receive Data A Differential in V.35/RS449/RS530 3
11 Receive Data B Differential in V.35/RS449/RS530 16
10 Send Timing A Differential in V.35/RS449/RS530 15
9 Send Timing B Differential in V.35/RS449/RS530 12
29 Data Set Ready (DSR) Single Ended in V.35
28 Request To Send (RTS) Single Ended out V.35
27 Data Terminal Ready (DTR) Single Ended out V.35
34 Digit Present (DPR) Single Ended out RS366 2
24 Abandon Call/Retry (ACR) Single Ended in RS366 3
32 Call Request (CRQ) Single Ended out RS366 4
26 Present Next Digit (PND) Single Ended in RS366 5
21 Data Line Occupied (DLO) Single Ended in RS366 22
14 Receive Timing A Differential in V.35/RS449/RS530 17
13 Receive Timing B Differential in V.35/RS449/RS530 9
8 Terminal Timing A Differential out V.35/RS449/RS530 24
7 Terminal Timing B Differential out V.35/RS449/RS530 11
15 Request To Send (RTS) A Differential out RS449/RS530 4
16 Request To Send (RTS) B Differential out RS449/RS530 19
35** Receive Common Gnd RS449
20 BCD Dial Digit Bit 1 (NB1) Single Ended out RS366 14
19 BCD Dial Digit Bit 2 (NB2) Single Ended out RS366 15
23 BCD Dial Digit Bit 4 (NB4) Single Ended out RS366 16
25 BCD Dial Digit Bit 8 (NB8) Single Ended out RS366 17
2** Signal Ground Gnd V.35/RS366 7,18,19
6 Send Data A Differential out V.35/RS449/RS530 2
5 Send Data B Differential out V.35/RS449/RS530 14
reserved (Ascend select line)
63 Clear To Send (CTS) A Differential in RS449/RS530 5
64 Clear To Send (CTS) B Differential in RS449/RS530 13
61 Data Mode (DM-DSR) A Differential in RS449/RS530 6
62 Data Mode (DM-DSR) B Differential in RS449/RS530 22
65 Receiver Ready (RR-DCD) A Differential in RS449/RS530 8
66 Receiver Ready (RR-DCD) B Differential in RS449/RS530 10
4** Send Common Gnd RS530 7
33 Data Carrier Detect (DCD) Single Ended in V.35
18 Terminal Ready (TR-DTR) A Differential out RS449/RS530 20
17 Terminal Ready (TR-DTR) B Differential out RS449/RS530 23
3 V.35 Cable Connected ground to indicate a V.35 cable is attached 7,18,19*
1 RS449 Cable Connected ground to indicate a RS449 cable is attached 7,18,19^#
22
Distant Station Connected (DSC)
Single Ended in RS366 13
30 Clear To Send (CTS) Single Ended in V.35
31
Ring Indicate (RI) (Incoming Call)
Single Ended in V.35/RS449
reserved (Ascend select line)
68 LOS A Differential out RS530 crypto 18
67 LOS B Differential out RS530 crypto 21
* For V.35, connect pin 3 of 68 pin connector to ground
^For RS449, connect pin 1 of 68 pin connector to ground
#For RS530, connect pins 1 and 3 of 68 pin connector to ground
*** Gndd pinss aree 22,44, 35-60